"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."

"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…"

"It is a cursed evil to any man to become so absorbed in any one subject as I am in mine."

"I am not a man of much argument."

"I am turned into a sort of machine for observing facts and grinding out generalizations."