It at once struck me that under these circumstances favourable variations would tend to be preserved, and unfavourable ones to be destroyed.
Charles DarwinWhy, if species have descended from other species by insensibly fine gradations, do we not everywhere see innumerable transitional forms.
Charles DarwinThere is no fundamental difference between humans and the higher mammalsin their mental faculties
Charles DarwinWith highly civilised nations continued progress depends in a subordinate degree on natural selection; for such nations do not supplant and exterminate one another as do savage tribes.
Charles DarwinFarewell Australia! You ... are too great and ambitious for affection, yet not great enough for respect. I leave your shores without sorrow or regret.
Charles DarwinMr. J.S. Mill speaks, in his celebrated work, "Utilitarianism," of the social feelings as a "powerful natural sentiment," and as "the natural basis of sentiment for utilitarian morality," but on the previous page he says, "if, as is my own belief, the moral feelings are not innate, but acquired, they are not for that reason less natural." It is with hesitation that I venture to differ from so profound a thinker, but it can hardly be disputed that the social feelings are instinctive or innate in the lower animals; and why should they not be so in man?
Charles Darwin