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.
Man is descended from a hairy, tailed quadruped, probably arboreal in its habits.
The very essence of instinct is that it's followed independently of reason.
A scientific man ought to have no wishes, no affections, - a mere heart of stone.
I love fools' experiments. I am always making them.
Ignorance more frequently begets confidence than does knowledge: it is those who know little, and not those who know much, who so positively assert that this or that problem will never be solved by science.
The mystery of the beginning of all things is insoluble by us; and I for one must be content to remain an agnostic.
An American monkey, after getting drunk on brandy, would never touch it again, and thus is much wiser than most men.
A man's friendships are one of the best measures of his worth.
A man who dares to waste one hour of time has not discovered the value of life.
Share the Top 10 Charles Darwin quotes!