---
title: "Meaning & Key Takeaway of: I’ve spent something like 17 years…"
description: "\"I’ve spent something like 17 years working on a theory for which there is essentially no direct experimental support.\" — Brian Greene"
image: "https://sms4smile.com/quotes/i/a09/brian-greene-2334_direct_i-ve-spent-something-like-17-years-worki_1383382.png"
---

#  I’ve spent something like 17 years working on a theory for…

![“I’ve spent something like 17 years working on a theory for which there is essentially no direct experimental support.” quote by Brian Greene](https://sms4smile.com/quotes/i/a09/brian-greene-2334_direct_i-ve-spent-something-like-17-years-worki_1383382.png)   [Download](https://sms4smile.com/quotes/i/a09/brian-greene-2334_direct_i-ve-spent-something-like-17-years-worki_1383382.png) [Open image](https://sms4smile.com/quotes/i/a09/brian-greene-2334_direct_i-ve-spent-something-like-17-years-worki_1383382.png)

> “I’ve spent something like 17 years working on a theory for which there is essentially no direct experimental support.”

[Brian Greene](https://sms4smile.com/quotes/author/brian-greene/)

## About This Quote

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

Long‑term research without experimental evidence can be intellectually stimulating but risks detachment from reality.

**In simple terms:** Theory without data is risky.

Key Takeaway

Balance speculation with testable predictions.

Themes

science philosophy patience

Mood

thoughtful analytical

Type

philosophical inspirational

When to use this quote

- academic research
- fundamental physics
- grant proposals

Key Concepts

theory empiricism innovation

Questions to Reflect On

- How do you justify such work?
- What could make it testable?

A Different Perspective

Lack of data may limit funding and impact.

★ ★ ★ ★ ★   No ratings yet

[Support](https://sms4smile.com/quotes/about/support/)

## Related quotes

> [(Game theory is) essentially a structural theory. It uncovers the logical structure of a great variety of conflict situations and describes this structure in…](https://sms4smile.com/quotes/anatol-rapoport/game-theory-is-essentially-a-structural-theory-it-uncovers-the/)

[Anatol Rapoport](https://sms4smile.com/quotes/author/anatol-rapoport/)

> [“Maddy once shared this whole working theory about professional men who spend the day building an empire and ego at work, then come home…](https://sms4smile.com/quotes/abby-fabiaschi/maddy-once-shared-this-whole-working-theory-about-professional-men/)

[Abby Fabiaschi](https://sms4smile.com/quotes/author/abby-fabiaschi/)

> [String theory is the most developed theory with the capacity to unite general relativity and quantum mechanics in a consistent manner. I do believe…](https://sms4smile.com/quotes/brian-greene/string-theory-is-the-most-developed-theory-with-the-capacity-to-unite/)

[Brian Greene](https://sms4smile.com/quotes/author/brian-greene/)

> [I don't say we should have performed miracles, but surely there ought to have been a difference between the apartheid regime and governance of…](https://sms4smile.com/quotes/winnie-madikizela-mandela/i-don-t-say-we-should-have-performed-miracles-but-surely-there-ought/)

[Winnie Madikizela-Mandela](https://sms4smile.com/quotes/author/winnie-madikizela-mandela/)

> [It took me 17 years to become a U.S. citizen.](https://sms4smile.com/quotes/pramila-jayapal/it-took-me-17-years-to-become-a-u-s-citizen/)

[Pramila Jayapal](https://sms4smile.com/quotes/author/pramila-jayapal/)

> [I really didn't settle stuff spiritually until I was 17 years of age. But through my teenage years I just knew that someday I…](https://sms4smile.com/quotes/john-c-maxwell/i-really-didn-t-settle-stuff-spiritually-until-i-was-17-years-of-age/)

[John C. Maxwell](https://sms4smile.com/quotes/author/john-c-maxwell/)

> [It is completely a God thing that I am here today because for the first 17 years of my life, I never thought I…](https://sms4smile.com/quotes/thomas-rhett/it-is-completely-a-god-thing-that-i-am-here-today-because-for-the/)

[Thomas Rhett](https://sms4smile.com/quotes/author/thomas-rhett/)

> [“I am 18 years old, that's for sure, OFFICIALLY... no need to hide anymore my age or to try to fake it for one…](https://sms4smile.com/quotes/deyth-banger/i-am-18-years-old-that-s-for-sure-officially-no-need-to-hide-anymore/)

Deyth Banger

> [I've been a Dolphin for 17 years, and I'll be a Dolphin for the rest of my life. That will never change.](https://sms4smile.com/quotes/dan-marino/i-ve-been-a-dolphin-for-17-years-and-i-ll-be-a-dolphin-for-the-rest/)

[Dan Marino](https://sms4smile.com/quotes/author/dan-marino/)

> [I never really looked at Formula One like that was the long-term goal. I obviously dreamed, and my aspirations were to get to Formula…](https://sms4smile.com/quotes/lance-stroll/i-never-really-looked-at-formula-one-like-that-was-the-long-term-goal/)

[Lance Stroll](https://sms4smile.com/quotes/author/lance-stroll/)

> [I've been in the industry for 17 years. I am over that phase of wanting my first watch, car etc.](https://sms4smile.com/quotes/sudha-kongara/i-ve-been-in-the-industry-for-17-years-i-am-over-that-phase-of/)

[Sudha Kongara](https://sms4smile.com/quotes/author/sudha-kongara/)

> [I spent 17 years at Real Madrid and nobody can doubt that I'm a 'madridista.'](https://sms4smile.com/quotes/raul/i-spent-17-years-at-real-madrid-and-nobody-can-doubt-that-i-m-a/)

[Raul](https://sms4smile.com/quotes/author/raul/)

> [I will have some time off, do some media works, and I think, for 17 years, I have given everything I could.](https://sms4smile.com/quotes/karen-carney/i-will-have-some-time-off-do-some-media-works-and-i-think-for-17/)

[Karen Carney](https://sms4smile.com/quotes/author/karen-carney/)

> [Here we are 17 years later. Those agencies never did come through.](https://sms4smile.com/quotes/jeremy-rifkin/here-we-are-17-years-later-those-agencies-never-did-come-through/)

[Jeremy Rifkin](https://sms4smile.com/quotes/author/jeremy-rifkin/)

> [During the last 17 years... I have been working at the restoration of a once exhausted hillside. Its scars are now healed over, though…](https://sms4smile.com/quotes/wendell-berry/during-the-last-17-years-i-have-been-working-at-the-restoration-of-a/)

[Wendell Berry](https://sms4smile.com/quotes/author/wendell-berry/)

## More by Brian Greene

> [The boldness of asking deep questions may require unforeseen flexibility if we are to accept the answers.](https://sms4smile.com/quotes/brian-greene/the-boldness-of-asking-deep-questions-may-require-unforeseen/)

[Brian Greene](https://sms4smile.com/quotes/author/brian-greene/)

> [The number of e-mails and letters that I get from choreographers, from sculptors, from composers who are being inspired by science is huge.](https://sms4smile.com/quotes/brian-greene/the-number-of-e-mails-and-letters-that-i-get-from-choreographers-from/)

[Brian Greene](https://sms4smile.com/quotes/author/brian-greene/)

> [One of the wonders of science is that it is completely universal. It crosses national boundaries with total ease.](https://sms4smile.com/quotes/brian-greene/one-of-the-wonders-of-science-is-that-it-is-completely-universal-it/)

[Brian Greene](https://sms4smile.com/quotes/author/brian-greene/)

> [String theory is the most developed theory with the capacity to unite general relativity and quantum mechanics in a consistent manner. I do believe…](https://sms4smile.com/quotes/brian-greene/string-theory-is-the-most-developed-theory-with-the-capacity-to-unite/)

[Brian Greene](https://sms4smile.com/quotes/author/brian-greene/)

> [But, as Einstein once said, “For we convinced physicists, the distinction between past, present, and future is only an illusion, however persistent.”5](https://sms4smile.com/quotes/brian-greene/but-as-einstein-once-said-for-we-convinced-physicists-the-distinction/)

[Brian Greene](https://sms4smile.com/quotes/author/brian-greene/)

> [Sometimes attaining the deepest familiarity with a question is our best substitute for actually having the answer.](https://sms4smile.com/quotes/brian-greene/sometimes-attaining-the-deepest-familiarity-with-a-question-is-our/)

[Brian Greene](https://sms4smile.com/quotes/author/brian-greene/)

> [When kids look up to great scientists the way they do to great musicians and actors, civilization will jump to the next level](https://sms4smile.com/quotes/brian-greene/when-kids-look-up-to-great-scientists-the-way-they-do-to-great/)

[Brian Greene](https://sms4smile.com/quotes/author/brian-greene/)

> [I have long thought that anyone who does not regularly - or ever - gaze up and see the wonder and glory of a…](https://sms4smile.com/quotes/brian-greene/i-have-long-thought-that-anyone-who-does-not-regularly-or-ever-gaze/)

[Brian Greene](https://sms4smile.com/quotes/author/brian-greene/)

> [There are many of us thinking of one version of parallel universe theory or another. If it's all a lot of nonsense, then it's…](https://sms4smile.com/quotes/brian-greene/there-are-many-of-us-thinking-of-one-version-of-parallel-universe/)

[Brian Greene](https://sms4smile.com/quotes/author/brian-greene/)

> [As every parent knows, children begin life as uninhibited, unabashed explorers of the unknown. From the time we can walk and talk, we want…](https://sms4smile.com/quotes/brian-greene/as-every-parent-knows-children-begin-life-as-uninhibited-unabashed/)

[Brian Greene](https://sms4smile.com/quotes/author/brian-greene/)

> [The full name of string theory is really superstring theory. The 'super' stands for this feature called supersymmetry, which, without getting into any details,…](https://sms4smile.com/quotes/brian-greene/the-full-name-of-string-theory-is-really-superstring-theory-the-super/)

[Brian Greene](https://sms4smile.com/quotes/author/brian-greene/)

> [For most people, the major hurdle in grasping modern insights into the nature of the universe is that these developments are usually phrased using…](https://sms4smile.com/quotes/brian-greene/for-most-people-the-major-hurdle-in-grasping-modern-insights-into-the/)

[Brian Greene](https://sms4smile.com/quotes/author/brian-greene/)

> [Writing for the stage is different from writing for a book. You want to write in a way that an actor has material to…](https://sms4smile.com/quotes/brian-greene/writing-for-the-stage-is-different-from-writing-for-a-book-you-want/)

[Brian Greene](https://sms4smile.com/quotes/author/brian-greene/)

> [We know that if supersymmetric particles exist, they must be very heavy; otherwise we would have spotted them by now.](https://sms4smile.com/quotes/brian-greene/we-know-that-if-supersymmetric-particles-exist-they-must-be-very/)

[Brian Greene](https://sms4smile.com/quotes/author/brian-greene/)

> [The beauty of string theory is the metaphor kind of really comes very close to the reality. The strings of string theory are vibrating…](https://sms4smile.com/quotes/brian-greene/the-beauty-of-string-theory-is-the-metaphor-kind-of-really-comes-very/)

[Brian Greene](https://sms4smile.com/quotes/author/brian-greene/)

[Explore all 168 Brian Greene quotes ](https://sms4smile.com/quotes/author/brian-greene/)

## More Direct quotes

> [One of the deepest and strangest of all human moods is the mood which will suddenly strike us perhaps in a garden at night,…](https://sms4smile.com/quotes/anonymous/one-of-the-deepest-and-strangest-of-all-human-moods-is-the-mood-which/)

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

> [Anybody can direct a picture once they know the fundamentals. Directing is not a mystery, it's not an art. The main thing about directing…](https://sms4smile.com/quotes/john-ford/anybody-can-direct-a-picture-once-they-know-the-fundamentals/)

[John Ford](https://sms4smile.com/quotes/author/john-ford/)

> [The method of magnitude estimation provided a direct measure of sensation.](https://sms4smile.com/quotes/stanley-smith-stevens/the-method-of-magnitude-estimation-provided-a-direct-measure-of/)

Stanley Smith Stevens

> [A place has almost the shyness of a person, with strangers; and its secret is not to be surprised by a too direct interrogation.](https://sms4smile.com/quotes/arthur-symons/a-place-has-almost-the-shyness-of-a-person-with-strangers-and-its/)

[Arthur Symons](https://sms4smile.com/quotes/author/arthur-symons/)

> [The prediction of nuclear winter is drawn not, of course, from any direct experience with the consequences of global nuclear war, but rather from…](https://sms4smile.com/quotes/carl-sagan/the-prediction-of-nuclear-winter-is-drawn-not-of-course-from-any/)

[Carl Sagan](https://sms4smile.com/quotes/author/carl-sagan/)

> [I'm currently trying to direct my own material.](https://sms4smile.com/quotes/tom-skerritt/i-m-currently-trying-to-direct-my-own-material/)

[Tom Skerritt](https://sms4smile.com/quotes/author/tom-skerritt/)

> [By the time you get into other kinds of music - R&amp;B, country, or whatever - it becomes something that's romantic. It becomes something…](https://sms4smile.com/quotes/talib-kweli/by-the-time-you-get-into-other-kinds-of-music-r-b-country-or-whatever/)

[Talib Kweli](https://sms4smile.com/quotes/author/talib-kweli/)

> [There's little in taking or giving, There's little in water or wine: This living, this living, this living, Was never a project of mine.…](https://sms4smile.com/quotes/dorothy-parker/there-s-little-in-taking-or-giving-there-s-little-in-water-or-wine/)

[Dorothy Parker](https://sms4smile.com/quotes/author/dorothy-parker/)

> [If you take all the food aid, America is by far the most generous country. If you take the direct aid, we're very generous.…](https://sms4smile.com/quotes/george-w-bush/if-you-take-all-the-food-aid-america-is-by-far-the-most-generous/)

[George W. Bush](https://sms4smile.com/quotes/author/george-w-bush/)

> [I understand the formula that producers hire directors and directors are hired to direct and actors are hired to act. I don't have any…](https://sms4smile.com/quotes/danny-trejo/i-understand-the-formula-that-producers-hire-directors-and-directors/)

[Danny Trejo](https://sms4smile.com/quotes/author/danny-trejo/)

> [They are the gateway for our modern esthetic development, the prophets of the new time. They are most of all, the primitives of the…](https://sms4smile.com/quotes/marsden-hartley/they-are-the-gateway-for-our-modern-esthetic-development-the-prophets/)

[Marsden Hartley](https://sms4smile.com/quotes/author/marsden-hartley/)

> [I'm too direct and too unsparingly impatient.](https://sms4smile.com/quotes/shirley-maclaine/i-m-too-direct-and-too-unsparingly-impatient/)

[Shirley MacLaine](https://sms4smile.com/quotes/author/shirley-maclaine/)

> [Steven Spielberg seems to have wanted to be a director from 13. He put his dog in a certain position and made him eat…](https://sms4smile.com/quotes/albert-brooks/steven-spielberg-seems-to-have-wanted-to-be-a-director-from-13-he-put/)

[Albert Brooks](https://sms4smile.com/quotes/author/albert-brooks/)

> [This separation was absolute in our original Republic. But the sky-godders do not give up easily. In the 1950s they actually got the phrase…](https://sms4smile.com/quotes/gore-vidal/this-separation-was-absolute-in-our-original-republic-but-the-sky/)

[Gore Vidal](https://sms4smile.com/quotes/author/gore-vidal/)

> [Violence is what people do when they run out of good ideas. It's attractive because it's simple, it's direct, it's almost always available as…](https://sms4smile.com/quotes/james-s-a-corey/violence-is-what-people-do-when-they-run-out-of-good-ideas-it-s/)

[James S.A. Corey](https://sms4smile.com/quotes/author/james-s-a-corey/)

Browse all 3,391 Direct quotes

```json
{
    "@context": "https://schema.org",
    "@graph": [
        {
            "@type": "Quotation",
            "text": "I’ve spent something like 17 years working on a theory for which there is essentially no direct experimental support.",
            "creator": {
                "@type": "Person",
                "name": "Brian Greene"
            },
            "isPartOf": {
                "@id": "https://sms4smile.com/quotes/#website"
            },
            "url": "https://sms4smile.com/quotes/brian-greene/i-ve-spent-something-like-17-years-working-on-a-theory-for-which/",
            "about": {
                "@type": "Thing",
                "name": "Direct"
            },
            "@id": "https://sms4smile.com/quotes/brian-greene/i-ve-spent-something-like-17-years-working-on-a-theory-for-which/#quotation",
            "image": {
                "@type": "ImageObject",
                "@id": "https://sms4smile.com/quotes/i/a09/brian-greene-2334_direct_i-ve-spent-something-like-17-years-worki_1383382.png",
                "contentUrl": "https://sms4smile.com/quotes/i/a09/brian-greene-2334_direct_i-ve-spent-something-like-17-years-worki_1383382.png",
                "url": "https://sms4smile.com/quotes/i/a09/brian-greene-2334_direct_i-ve-spent-something-like-17-years-worki_1383382.png",
                "width": 1080,
                "height": 1080,
                "caption": "“I’ve spent something like 17 years working on a theory for which there is essentially no direct experimental…” — Brian Greene",
                "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": "Brian Greene",
                    "item": "https://sms4smile.com/quotes/author/brian-greene/"
                },
                {
                    "@type": "ListItem",
                    "position": 4,
                    "name": "I’ve spent something like 17 years...",
                    "item": "https://sms4smile.com/quotes/brian-greene/i-ve-spent-something-like-17-years-working-on-a-theory-for-which/"
                }
            ],
            "@id": "https://sms4smile.com/quotes/brian-greene/i-ve-spent-something-like-17-years-working-on-a-theory-for-which/#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
            }
        }
    ]
}
```
