---
title: "Meaning & Key Takeaway of: I am convinced, by repeated observation…"
description: "\"I am convinced, by repeated observation, that marbles, lime-stones, chalks, marls, clays, sand, and almost all terrestrial substances, wherever situate..."
image: "https://sms4smile.com/quotes/i/e32/georges-louis-leclerc-comte-de_chalk_i-am-convinced-by-repeated-observation-t_2936016.png"
---

#  I am convinced, by repeated observation, that marbles…

![“I am convinced, by repeated observation, that marbles, lime-stones, chalks, marls, clays, sand, and almost all terrestrial substances, wherever situated, are full of shells and other spoils of the ocean.” quote by Georges-Louis Leclerc, Comte de Buffon](https://sms4smile.com/quotes/i/e32/georges-louis-leclerc-comte-de_chalk_i-am-convinced-by-repeated-observation-t_2936016.png)   [Download](https://sms4smile.com/quotes/i/e32/georges-louis-leclerc-comte-de_chalk_i-am-convinced-by-repeated-observation-t_2936016.png) [Open image](https://sms4smile.com/quotes/i/e32/georges-louis-leclerc-comte-de_chalk_i-am-convinced-by-repeated-observation-t_2936016.png)

> “I am convinced, by repeated observation, that marbles, lime-stones, chalks, marls, clays, sand, and almost all terrestrial substances, wherever situated, are full of shells and other spoils of the ocean.”

[Georges-Louis Leclerc, Comte de Buffon](https://sms4smile.com/quotes/author/georges-louis-leclerc-comte-de-buffon/)

## About This Quote

This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation.

Terrestrial materials contain marine fossils, showing Earth's geological continuity and past oceanic influence.

**In simple terms:** Land rocks hold sea shells, proving ancient seas.

Key Takeaway

Recognize Earth's deep history through rocks.

Themes

geology history continuity

Mood

curious reflective

Type

scientific educational

When to use this quote

- education
- museum exhibits
- field research
- environmental studies

Key Concepts

paleontology sedimentology earth cycles

Questions to Reflect On

- How does this evidence reshape our view of Earth's past?
- What implications does it have for climate history?

A Different Perspective

Fossils may be misidentified without proper analysis.

★ ★ ★ ★ ★   No ratings yet

[Chalk](https://sms4smile.com/quotes/about/chalk/) [Clay](https://sms4smile.com/quotes/about/clay/) [Convinced](https://sms4smile.com/quotes/about/convinced/) [Geology](https://sms4smile.com/quotes/about/geology/) [Limes](https://sms4smile.com/quotes/about/limes/) [Marble](https://sms4smile.com/quotes/about/marble/) [Marbles Lime](https://sms4smile.com/quotes/about/marbles-lime-4353253/) [Observation](https://sms4smile.com/quotes/about/observation/) [Observation Marbles](https://sms4smile.com/quotes/about/observation-marbles-4353254/) [Ocean](https://sms4smile.com/quotes/about/ocean/) [Rocks](https://sms4smile.com/quotes/about/rocks/) [Sand](https://sms4smile.com/quotes/about/sand/) [Science](https://sms4smile.com/quotes/about/science/) [Shells](https://sms4smile.com/quotes/about/shells/) [Shells Spoils](https://sms4smile.com/quotes/about/shells-spoils-4353252/) [Spoil](https://sms4smile.com/quotes/about/spoil/) [Spoils Ocean](https://sms4smile.com/quotes/about/spoils-ocean-4353251/) [Stones](https://sms4smile.com/quotes/about/stones/) [Substance](https://sms4smile.com/quotes/about/substance/)

## Related quotes

> [When life hands you lemons, you squirt them in the eye, than yell that you wanted limes!](https://sms4smile.com/quotes/amanda-day/when-life-hands-you-lemons-you-squirt-them-in-the-eye-than-yell-that/)

[Amanda Day](https://sms4smile.com/quotes/author/amanda-day/)

> [In Hong Kong, Dallas, or at home —and regardless of whether or not I have been to bed — breakfast is a personal ritual…](https://sms4smile.com/quotes/hunter-s-thompson/in-hong-kong-dallas-or-at-home-and-regardless-of-whether-or-not-i/)

[Hunter S. Thompson](https://sms4smile.com/quotes/author/hunter-s-thompson/)

> [If thou lookest on the lime-leaf, Thou a heart's form will discover; Therefore are the lindens ever Chosen seats of each fond lover.](https://sms4smile.com/quotes/heinrich-heine/if-thou-lookest-on-the-lime-leaf-thou-a-heart-s-form-will-discover/)

[Heinrich Heine](https://sms4smile.com/quotes/author/heinrich-heine/)

> [Look at the limes in this drink, how they float. That's good news. Next time I'm on a boat, and it capsizes, I will…](https://sms4smile.com/quotes/mitch-hedberg/look-at-the-limes-in-this-drink-how-they-float-that-s-good-news-next/)

[Mitch Hedberg](https://sms4smile.com/quotes/author/mitch-hedberg/)

> [For tea she went down to see Misses Spink and Forcible. She had three digestive biscuits, a glass of limeade, and a cup of…](https://sms4smile.com/quotes/neil-gaiman/for-tea-she-went-down-to-see-misses-spink-and-forcible-she-had-three/)

[Neil Gaiman](https://sms4smile.com/quotes/author/neil-gaiman/)

> [Well apparently nothing as of December 13, 1978. There was 20 trained police officers came to the house, with a warrant..searched the house, and…](https://sms4smile.com/quotes/john-wayne-gacy/well-apparently-nothing-as-of-december-13-1978-there-was-20-trained/)

[John Wayne Gacy](https://sms4smile.com/quotes/author/john-wayne-gacy/)

> [In our large cities, the population is godless, materialized,--no bond, no fellow-feeling, no enthusiasm. These are not men, but hungers, thirsts, fevers, and appetites…](https://sms4smile.com/quotes/ralph-waldo-emerson/in-our-large-cities-the-population-is-godless-materialized-no-bond-no/)

[Ralph Waldo Emerson](https://sms4smile.com/quotes/author/ralph-waldo-emerson/)

> [Oh, sir, the loftiest hopes on earth Draw lots with meaner hopes: heroic breasts, Breathing bad air, run risk of pestilence; Or, lacking lime-juice…](https://sms4smile.com/quotes/george-eliot/oh-sir-the-loftiest-hopes-on-earth-draw-lots-with-meaner-hopes-heroic/)

[George Eliot](https://sms4smile.com/quotes/author/george-eliot/)

> [I'm not afraid of anything. My two favorite colors are lime green and hot pink. I mean, I really like pink. And I don't…](https://sms4smile.com/quotes/bubba-watson/i-m-not-afraid-of-anything-my-two-favorite-colors-are-lime-green-and/)

[Bubba Watson](https://sms4smile.com/quotes/author/bubba-watson/)

> [You know what they say: 'Why sit at a table that doesn't have key lime pie on it if you don't have to?'](https://sms4smile.com/quotes/sloane-crosley/you-know-what-they-say-why-sit-at-a-table-that-doesn-t-have-key-lime/)

[Sloane Crosley](https://sms4smile.com/quotes/author/sloane-crosley/)

> [You hear, Eugene?' said Lightwood over his shoulder. 'You are deeply interested in lime.' 'Without lime,' returned that unmoved barrister at law, 'my existence…](https://sms4smile.com/quotes/charles-dickens/you-hear-eugene-said-lightwood-over-his-shoulder-you-are-deeply/)

[Charles Dickens](https://sms4smile.com/quotes/author/charles-dickens/)

> [I like to see the difference between good and evil as kind of like the foul line at a baseball game. It's very thin,…](https://sms4smile.com/quotes/harlan-coben/i-like-to-see-the-difference-between-good-and-evil-as-kind-of-like/)

[Harlan Coben](https://sms4smile.com/quotes/author/harlan-coben/)

> [Laws are not made like lime-twigs or nets, to catch everything that toucheth them; but rather like sea-marks, to guide from shipwreck the ignorant…](https://sms4smile.com/quotes/philip-sidney/laws-are-not-made-like-lime-twigs-or-nets-to-catch-everything-that/)

[Philip Sidney](https://sms4smile.com/quotes/author/philip-sidney/)

> [At five in the afternoon. It was exactly five in the afternoon. A boy brought the white sheet at five in the afternoon. A…](https://sms4smile.com/quotes/anonymous/at-five-in-the-afternoon-it-was-exactly-five-in-the-afternoon-a-boy/)

[Anonymous](https://sms4smile.com/quotes/author/anonymous/)

> [What is sublime? / the artist said. / I haven't time / to be well read. / To be sub lime / I'll place,…](https://sms4smile.com/quotes/walter-darby-bannard/what-is-sublime-the-artist-said-i-haven-t-time-to-be-well-read-to-be/)

[Walter Darby Bannard](https://sms4smile.com/quotes/author/walter-darby-bannard/)

## More by Georges-Louis Leclerc, Comte de Buffon

> [To write well is to think well, to feel well, and to render well; it is to possess at once intellect, soul, and taste.](https://sms4smile.com/quotes/georges-louis-leclerc-comte-de-buffon/to-write-well-is-to-think-well-to-feel-well-and-to-render-well-it-is/)

[Georges-Louis Leclerc, Comte de Buffon](https://sms4smile.com/quotes/author/georges-louis-leclerc-comte-de-buffon/)

> [The discoveries that one can make with the microscope amount to very little, for one sees with the mind's eye and without the microscope…](https://sms4smile.com/quotes/georges-louis-leclerc-comte-de-buffon/the-discoveries-that-one-can-make-with-the-microscope-amount-to-very/)

[Georges-Louis Leclerc, Comte de Buffon](https://sms4smile.com/quotes/author/georges-louis-leclerc-comte-de-buffon/)

> [In general, the more one augments the number of divisions of the productions of nature, the more one approaches the truth, since in nature…](https://sms4smile.com/quotes/georges-louis-leclerc-comte-de-buffon/in-general-the-more-one-augments-the-number-of-divisions-of-the/)

[Georges-Louis Leclerc, Comte de Buffon](https://sms4smile.com/quotes/author/georges-louis-leclerc-comte-de-buffon/)

> [Style supposes the reunion and the exercise of all the intellectual faculties. The style is the man.](https://sms4smile.com/quotes/georges-louis-leclerc-comte-de-buffon/style-supposes-the-reunion-and-the-exercise-of-all-the-intellectual/)

[Georges-Louis Leclerc, Comte de Buffon](https://sms4smile.com/quotes/author/georges-louis-leclerc-comte-de-buffon/)

> [Let us investigate more closely this property common to animal and plant, this power of producing its likeness, this chain of successive existences of…](https://sms4smile.com/quotes/georges-louis-leclerc-comte-de-buffon/let-us-investigate-more-closely-this-property-common-to-animal-and/)

[Georges-Louis Leclerc, Comte de Buffon](https://sms4smile.com/quotes/author/georges-louis-leclerc-comte-de-buffon/)

> [The dog has no ambition, no self-interest, no desire for vengeance, no fear other than that of displeasing.](https://sms4smile.com/quotes/georges-louis-leclerc-comte-de-buffon/the-dog-has-no-ambition-no-self-interest-no-desire-for-vengeance-no/)

[Georges-Louis Leclerc, Comte de Buffon](https://sms4smile.com/quotes/author/georges-louis-leclerc-comte-de-buffon/)

> [The human mind cannot create anything. It produces nothing until having been fertilized by experience and meditation; its acquisitions are the germs of its…](https://sms4smile.com/quotes/georges-louis-leclerc-comte-de-buffon/the-human-mind-cannot-create-anything-it-produces-nothing-until/)

[Georges-Louis Leclerc, Comte de Buffon](https://sms4smile.com/quotes/author/georges-louis-leclerc-comte-de-buffon/)

> [Although the works of the Creator may be in themselves all equally perfect, the animal is, as I see it, the most complete work…](https://sms4smile.com/quotes/georges-louis-leclerc-comte-de-buffon/although-the-works-of-the-creator-may-be-in-themselves-all-equally/)

[Georges-Louis Leclerc, Comte de Buffon](https://sms4smile.com/quotes/author/georges-louis-leclerc-comte-de-buffon/)

> [An Individual, whatever species it might be, is nothing in the Universe. A hundred, a thousand individuals are still nothing. The species are the…](https://sms4smile.com/quotes/georges-louis-leclerc-comte-de-buffon/an-individual-whatever-species-it-might-be-is-nothing-in-the-universe/)

[Georges-Louis Leclerc, Comte de Buffon](https://sms4smile.com/quotes/author/georges-louis-leclerc-comte-de-buffon/)

> [To be and to think are one and the same for us.](https://sms4smile.com/quotes/georges-louis-leclerc-comte-de-buffon/to-be-and-to-think-are-one-and-the-same-for-us/)

[Georges-Louis Leclerc, Comte de Buffon](https://sms4smile.com/quotes/author/georges-louis-leclerc-comte-de-buffon/)

> [There are several kinds of truths, and it is customary to place in the first order mathematical truths, which are, however, only truths of…](https://sms4smile.com/quotes/georges-louis-leclerc-comte-de-buffon/there-are-several-kinds-of-truths-and-it-is-customary-to-place-in-the/)

[Georges-Louis Leclerc, Comte de Buffon](https://sms4smile.com/quotes/author/georges-louis-leclerc-comte-de-buffon/)

> [The greatest marvel is not in the individual. It is in the succession, in the renewal and in the duration of the species that…](https://sms4smile.com/quotes/georges-louis-leclerc-comte-de-buffon/the-greatest-marvel-is-not-in-the-individual-it-is-in-the-succession/)

[Georges-Louis Leclerc, Comte de Buffon](https://sms4smile.com/quotes/author/georges-louis-leclerc-comte-de-buffon/)

> [Those who write as they speak, even though they speak well, write badly.](https://sms4smile.com/quotes/georges-louis-leclerc-comte-de-buffon/those-who-write-as-they-speak-even-though-they-speak-well-write-badly/)

[Georges-Louis Leclerc, Comte de Buffon](https://sms4smile.com/quotes/author/georges-louis-leclerc-comte-de-buffon/)

> [There is nothing good in love but the physical part.](https://sms4smile.com/quotes/georges-louis-leclerc-comte-de-buffon/there-is-nothing-good-in-love-but-the-physical-part/)

[Georges-Louis Leclerc, Comte de Buffon](https://sms4smile.com/quotes/author/georges-louis-leclerc-comte-de-buffon/)

> [Only those works which are well-written will pass to posterity: the amount of knowledge, the uniqueness of the facts, even the novelty of the…](https://sms4smile.com/quotes/georges-louis-leclerc-comte-de-buffon/only-those-works-which-are-well-written-will-pass-to-posterity-the/)

[Georges-Louis Leclerc, Comte de Buffon](https://sms4smile.com/quotes/author/georges-louis-leclerc-comte-de-buffon/)

[Explore all 31 Georges-Louis Leclerc, Comte de Buffon quotes ](https://sms4smile.com/quotes/author/georges-louis-leclerc-comte-de-buffon/)

## More Chalk quotes

> [The magic in that country was so thick and tenacious that it settled over the land like chalk-dust and over floors and shelves like…](https://sms4smile.com/quotes/robin-mckinley/the-magic-in-that-country-was-so-thick-and-tenacious-that-it-settled/)

[Robin McKinley](https://sms4smile.com/quotes/author/robin-mckinley/)

> [When drawing the sun, try to have on hand colored paper, chalk, felt-tip markers, crayons, pencils, ball point pens. You can draw a sun…](https://sms4smile.com/quotes/bruno-munari/when-drawing-the-sun-try-to-have-on-hand-colored-paper-chalk-felt-tip/)

[Bruno Munari](https://sms4smile.com/quotes/author/bruno-munari/)

> [I don't have anything against God. Far from it. But I don't understand Him. And I don't trust a lot of the people that…](https://sms4smile.com/quotes/jim-butcher/i-don-t-have-anything-against-god-far-from-it-but-i-don-t-understand/)

[Jim Butcher](https://sms4smile.com/quotes/author/jim-butcher/)

> [Deliverance is about what I went through the first time. And I chalk it up as a learning experience.](https://sms4smile.com/quotes/bubba-sparxxx/deliverance-is-about-what-i-went-through-the-first-time-and-i-chalk/)

[Bubba Sparxxx](https://sms4smile.com/quotes/author/bubba-sparxxx/)

> [I love it when the dark bottle of night spills out, and the Moon writes in chalk about us.](https://sms4smile.com/quotes/anonymous/i-love-it-when-the-dark-bottle-of-night-spills-out-and-the-moon/)

[Anonymous](https://sms4smile.com/quotes/author/anonymous/)

> [The bread I eat in London, is a deleterious paste, mixed up with chalk, alum, and bone ashes: insipid to the taste, and destructive…](https://sms4smile.com/quotes/tobias-smollett/the-bread-i-eat-in-london-is-a-deleterious-paste-mixed-up-with-chalk/)

[Tobias Smollett](https://sms4smile.com/quotes/author/tobias-smollett/)

> [Whether or not belive in Fate comes down to one thing: who you blame when something goes wrong. Do you think it's your fault…](https://sms4smile.com/quotes/jodi-picoult/whether-or-not-belive-in-fate-comes-down-to-one-thing-who-you-blame/)

[Jodi Picoult](https://sms4smile.com/quotes/author/jodi-picoult/)

> [I don't know why we play better on the road. I really don't. Chalk it up to coincidence, I guess. I don't think we…](https://sms4smile.com/quotes/aaron-boone/i-don-t-know-why-we-play-better-on-the-road-i-really-don-t-chalk-it/)

[Aaron Boone](https://sms4smile.com/quotes/author/aaron-boone/)

> [“When he got to the tank’s flat, circular cap, it seemed that he must be standing directly under the roof of the world, and…](https://sms4smile.com/quotes/stephen-king/when-he-got-to-the-tank-s-flat-circular-cap-it-seemed-that-he-must-be/)

[Stephen King](https://sms4smile.com/quotes/author/stephen-king/)

> [You must elect your work; you shall take what your brains can, and drop all the rest. Only so can that amount of vital…](https://sms4smile.com/quotes/ralph-waldo-emerson/you-must-elect-your-work-you-shall-take-what-your-brains-can-and-drop/)

[Ralph Waldo Emerson](https://sms4smile.com/quotes/author/ralph-waldo-emerson/)

> [The chalk thing lebron does before games...isn't chalk. It's dust from his fingers being ringless.](https://sms4smile.com/quotes/anonymous/the-chalk-thing-lebron-does-before-games-isn-t-chalk-it-s-dust-from/)

[Anonymous](https://sms4smile.com/quotes/author/anonymous/)

> [The kitchen was bright, cheerful yellow, the walls decorated with framed chalk and pencil sketches Simon and Rebecca had done in grade school. Rebecca…](https://sms4smile.com/quotes/cassandra-clare/the-kitchen-was-bright-cheerful-yellow-the-walls-decorated-with/)

[Cassandra Clare](https://sms4smile.com/quotes/author/cassandra-clare/)

> [Unoka went into an inner room and soon returned with a small wooden disc containing a kola nut, some alligator pepper and a lump…](https://sms4smile.com/quotes/chinua-achebe/unoka-went-into-an-inner-room-and-soon-returned-with-a-small-wooden/)

[Chinua Achebe](https://sms4smile.com/quotes/author/chinua-achebe/)

> [The educated horse is a thinking horse, and it seems that he understands every now and then something happens that he must chalk up…](https://sms4smile.com/quotes/dennis-murphy/the-educated-horse-is-a-thinking-horse-and-it-seems-that-he/)

[Dennis Murphy](https://sms4smile.com/quotes/author/dennis-murphy/)

> [Shall I describe the happiness it gave me to go into the classroom and pick up the chalk? ... It seemed to me the…](https://sms4smile.com/quotes/aleksandr-solzhenitsyn/shall-i-describe-the-happiness-it-gave-me-to-go-into-the-classroom/)

[Aleksandr Solzhenitsyn](https://sms4smile.com/quotes/author/aleksandr-solzhenitsyn/)

[Browse all 114 Chalk quotes ](https://sms4smile.com/quotes/about/chalk/)

```json
{
    "@context": "https://schema.org",
    "@graph": [
        {
            "@type": "Quotation",
            "text": "I am convinced, by repeated observation, that marbles, lime-stones, chalks, marls, clays, sand, and almost all terrestrial substances, wherever situated, are full of shells and other spoils of the ocean.",
            "creator": {
                "@type": "Person",
                "name": "Georges-Louis Leclerc, Comte de Buffon"
            },
            "isPartOf": {
                "@id": "https://sms4smile.com/quotes/#website"
            },
            "url": "https://sms4smile.com/quotes/georges-louis-leclerc-comte-de-buffon/i-am-convinced-by-repeated-observation-that-marbles-lime-stones/",
            "about": {
                "@type": "Thing",
                "name": "Chalk"
            },
            "@id": "https://sms4smile.com/quotes/georges-louis-leclerc-comte-de-buffon/i-am-convinced-by-repeated-observation-that-marbles-lime-stones/#quotation",
            "image": {
                "@type": "ImageObject",
                "@id": "https://sms4smile.com/quotes/i/e32/georges-louis-leclerc-comte-de_chalk_i-am-convinced-by-repeated-observation-t_2936016.png",
                "contentUrl": "https://sms4smile.com/quotes/i/e32/georges-louis-leclerc-comte-de_chalk_i-am-convinced-by-repeated-observation-t_2936016.png",
                "url": "https://sms4smile.com/quotes/i/e32/georges-louis-leclerc-comte-de_chalk_i-am-convinced-by-repeated-observation-t_2936016.png",
                "width": 1080,
                "height": 1080,
                "caption": "“I am convinced, by repeated observation, that marbles, lime-stones, chalks, marls, clays, sand, and almost…” — Georges-Louis Leclerc, Comte de Buffon",
                "creditText": "SMS4Smile Quotes",
                "creator": {
                    "@id": "https://sms4smile.com/quotes/#organization"
                }
            }
        },
        {
            "@type": "BreadcrumbList",
            "itemListElement": [
                {
                    "@type": "ListItem",
                    "position": 1,
                    "name": "Home",
                    "item": "https://sms4smile.com/"
                },
                {
                    "@type": "ListItem",
                    "position": 2,
                    "name": "Quotes",
                    "item": "https://sms4smile.com/quotes/"
                },
                {
                    "@type": "ListItem",
                    "position": 3,
                    "name": "Georges-Louis Leclerc, Comte de Buffon",
                    "item": "https://sms4smile.com/quotes/author/georges-louis-leclerc-comte-de-buffon/"
                },
                {
                    "@type": "ListItem",
                    "position": 4,
                    "name": "I am convinced, by repeated observation,...",
                    "item": "https://sms4smile.com/quotes/georges-louis-leclerc-comte-de-buffon/i-am-convinced-by-repeated-observation-that-marbles-lime-stones/"
                }
            ],
            "@id": "https://sms4smile.com/quotes/georges-louis-leclerc-comte-de-buffon/i-am-convinced-by-repeated-observation-that-marbles-lime-stones/#breadcrumb"
        },
        {
            "@type": "WebSite",
            "@id": "https://sms4smile.com/quotes/#website",
            "name": "SMS4Smile Quotes",
            "url": "https://sms4smile.com/quotes/",
            "publisher": {
                "@id": "https://sms4smile.com/quotes/#organization"
            }
        },
        {
            "@type": "Organization",
            "@id": "https://sms4smile.com/quotes/#organization",
            "name": "SMS4Smile Quotes",
            "url": "https://sms4smile.com/quotes/",
            "logo": {
                "@type": "ImageObject",
                "url": "https://sms4smile.com/quotes/wp-content/themes/sq/assets/icons/icon-512.png",
                "width": 512,
                "height": 512
            }
        }
    ]
}
```