In my simplicity, I remember wondering why every gentleman did not become an ornithologist. — Charles Darwin Copy Share Image
Endless forms most beautiful and most wonderful have been, and are being evolved — Charles Darwin Copy Share Image
We will now discuss in a little more detail the Struggle for Existence. — Charles Darwin Copy Share Image
I think it can be shown that there is such an unerring power at work in Natural Selection, which selects exclusively for… — Charles Darwin Copy Share Image
“I am convinced that natural selection has been the main but not exclusive means of modification.” — Charles Darwin Copy Share Image
We thus learn that man is descended from a hairy quadruped, furnished with a tail and pointed ears, probably arboreal in its… — Charles Darwin Copy Share Image
Why, if species have descended from other species by insensibly fine gradations, do we not everywhere see innumerable transitional forms. — Charles Darwin Copy Share Image
“It is difficult to believe in the dreadful but quiet war lurking just below the serene facade of nature.” — Charles Darwin Copy Share Image
The survival or preservation of certain favoured words in the struggle for existence is natural selection. — Charles Darwin Copy Share Image
It is not the biggest, the brightest or the best that will survive, but those who adapt the quickest. — Charles Darwin Copy Share Image
Man is developed from an ovule, about 125th of an inch in diameter, which differs in no respect from the ovules of… — Charles Darwin Copy Share Image
In however complex a manner this feeling may have originated, as it is one of high importance to all those animals which… — Charles Darwin Copy Share Image
The chief distinction in the intellectual powers of the two sexes is shown by mans attaining to a higher eminence, in whatever… — Charles Darwin Copy Share Image
I have called this principle, by which each slight variation, if useful, is preserved, by the term Natural Selection, in order to… — Charles Darwin Copy Share Image
The main conclusion arrived at in this work, namely that man is descended from some lowly-organised form, will, I regret to think,… — Charles Darwin Copy Share Image
If it could be demonstrated that any complex organ existed, which could not possibly have been formed by numerous, successive, slight modifications,… — Charles Darwin Copy Share Image
Hereafter we shall be compelled to acknowledge that the only distinction between species and well-marked varieties is, that the latter are known,… — Charles Darwin Copy Share Image
This preservation of favourable variations and the destruction of injurious variations, I call Natural Selection, or the Survival of the Fittest. Variations… — Charles Darwin Copy Share Image
I think it inevitably follows, that as new species in the course of time are formed through natural selection, others will become… — Charles Darwin Copy Share Image
“Thus, as I believe, natural selection will tend in the long run to reduce any part of the organisation, as soon as… — Charles Darwin Copy Share Image
The more I study nature, the more I become impressed with ever-increasing force with the conclusion, that the contrivances and beautiful adaptations… — Charles Darwin Copy Share Image
Man with all his noble qualities, with sympathy which feels for the most debased, with benevolence which extends not only to other… — Charles Darwin Copy Share Image
It is often said that all the conditions for the first production of a living organism are now present, which could ever… — Charles Darwin Copy Share Image
It is really laughable to see what different ideas are prominent in various naturalists' minds, when they speak of 'species'; in some,… — Charles Darwin Copy Share Image
“When we no longer look at an organic being as a savage looks at a ship, as at something wholly beyond his… — Charles Darwin Copy Share Image
“Thus, from the war of nature, from famine and death, the most exalted object which we are capable of conceiving, namely, the… — Charles Darwin Copy Share Image
The several difficulties here discussed, namely our not finding in the successive formations infinitely numerous transitional links between the many species which… — Charles Darwin Copy Share Image
“The affinities of all the beings of the same class have sometimes been represented by a great tree.I believe this simile largely… — Charles Darwin Copy Share Image
“I will here give a brief sketch of the progress of opinion on the Origin of Species. Until recently the great majority… — Charles Darwin Copy Share Image
It is not the strongest of the species that survive, but the one most responsive to change. — Charles Darwin Copy Share Image
A cell is a complex structure, with its investing membrane, nucleus, and nucleolus. — Charles Darwin Copy Share Image
Mere chance ... alone would never account for so habitual and large an amount of difference as that between varieties of the… — Charles Darwin Copy Share Image
“Natural Selection almost inevitably causes much Extinction of the less improved forms of life and induces what I have called Divergence of… — Charles Darwin Copy Share Image
The formation of different languages and of distinct species and the proofs that both have been developed through a gradual process, are… — Charles Darwin Copy Share Image
Natural selection acts solely by accumulating slight successive favorable variations, it can produce no great or sudden modification; it can act only… — Charles Darwin Copy Share Image
The love for all living creatures is the most noble attribute of man. — Charles Darwin Copy Share Image
The main conclusion here arrived at ... is that man is descended from some less highly organized form. — Charles Darwin Copy Share Image
So great is the economy of nature, that most flowers which are fertilised by crepuscular or nocturnal insects emit their odour chiefly or exclusively… — Charles Darwin Copy Share Image
I see no good reasons why the views given in this volume should shock the religious views of anyone. — Charles Darwin Copy Share Image
I am quite conscious that my speculations run beyond the bounds of true science…It is a mere rag of an hypothesis with as many… — Charles Darwin Copy Share Image
If worms have the power of acquiring some notion, however rude, of the shape of an object and over their burrows, as seems the… — Charles Darwin Copy Share Image
We can allow satellites, planets, suns, universe, nay whole systems of universes, to be governed by laws, but the smallest insect, we wish to… — Charles Darwin Copy Share Image
Formerly Milton's Paradise Lost had been my chief favourite, and in my excursions during the voyage of the Beagle, when I could take only… — Charles Darwin Copy Share Image
May we not suspect that the vague but very real fears of children, which are quite independent of experience, are the inherited effects of… — Charles Darwin Copy Share Image
It may be said that natural selection is daily and hourly scrutinizing, throughout the world, every variation, even the slightest; rejecting that which is… — Charles Darwin Copy Share Image
“Darwin, landing in Brazil in 1832, had a similar reaction, colored by his reading of his predecessor." Humboldt's glorious descriptions are & will for… — Charles Darwin Copy Share Image