Natural selection acts solely by accumulating slight successive favorable variations, it can produce no great or sudden modification; it can act only by very short steps.
He who understands baboons would do more towards metaphysics than Locke.
The question of whether there exists a Creator and Ruler of the Universe has been answered in the affirmative by some of the highest intellects that have ever existed.
We may confidently come to the conclusion, that the forces which slowly and by little starts uplift continents, and that those which at successive periods pour forth volcanic matter from open orifices, are identical.
What can be more curious than that the hand of a man, formed for grasping, that of a mole for digging, the leg of the horse, the paddle of the porpoise, and the wing of the bat, should all be constructed on the same pattern?
Daily it is forced home on the mind of the biologist that nothing, not even the wind that blows, is so unstable as the level of the crust of this earth.
Thomson’s views on the recent age of the world have been for some time one of my sorest troubles.
Disbelief crept over me at a very slow rate, but at last it was complete.
I shall always feel respect for every one who has written a book, let it be what it may, for I had no idea of the trouble which trying to write common English could cost one – And alas there yet remains the worst part of all correcting the press.
If it could be demonstrated that any complex organ existed, which could not possibly have been formed by numerous, successive, slight modifications, my theory would absolutely break down. But I can find no such case.
A moral being is one who is capable of reflecting on his past actions and their motives – of approving of some and disapproving of others.
The evolution of the human race will not be accomplished in the ten thousand years of tame animals, but in the million years of wild animals, because man is, and always will be, a wild animal.
If the country were open on its borders, new forms would certainly immigrate, and this would also seriously disturb the relations of some of the former inhabitants. Let it be remembered how powerful the influence of a single introduced tree or mammal has been shown to be.
On the other hand, novels which are works of the imagination, though not of a very high order, have been for years a wonderful relief and pleasure to me, and I often bless all novelists. A surprising number have been read aloud to me, and I like all if moderately good, and if they do not end unhappily – against which a law ought to be passed.
The children of the Indians are saved, to be sold or given away as servants, or rather slaves, for as long a time as the owners can deceive them; but I believe in this respect there is little to complain of.
I received the proceedings of one of the meetings, in which it seemed that the shape of my head had been the subject of a public discussion, and one of the speakers declared that I had the bump of reverence developed enough for ten priests.
All that at present can be said with certainty, is that, as with the individual, so with the species, the hour of life has run its course, ans is spent.
The natural history of this archipelago is very remarkable; it seems to be a little world within itself.
Travelling ought also to teach him distrust; but at the same time he will discover, how many trully goodnatured people there are.
Hence it is quite credible that the presence of a feline animal in large numbers in a district might determine, through the intervention first of mice and then of bees, the frequency of certain flowers in that district!
Natural Selection has been the main but not exclusive means of modification.