"False facts are highly injurious to the progress of science, for they often endure long; but false views, if supported by some evidence, do little harm, for every one takes a salutary pleasure in prov…"

"If I have seen further than others, it is by standing upon the shoulders of giants."

"I had no intention of writing an autobiography, but I found myself doing so."

"Ultimately, the universe must be the outcome of chance."

"Looking to the world at no very distant date, what an endless number of the lower races will have been eliminated by the higher civilized races throughout the world."