Charles Darwin

At some future period, not very distant as measured by centuries, the civilized races of man will almost certainly exterminate, and replace the savage races throughout the world. ”

We can allow satellites, planets, suns, universe, nay whole systems of universes, to be governed by laws, but the smallest insect, we wish to be created at once by special act. ”

On the ordinary view of each species having been independently created, we gain no scientific explanation. ”

A scientific man ought to have no wishes, no affections, - a mere heart of stone. ”

To kill an error is as good a service as, and sometimes even better than, the establishing of a new truth or fact. ”

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 very essence of instinct is that it's followed independently of reason. ”

I love fools' experiments. I am always making them. ”

A man who dares to waste one hour of time has not discovered the value of life. ”

I cannot persuade myself that a beneficent and omnipotent God would have designedly created parasitic wasps with the express intention of their feeding within the living bodies of Caterpillars. ”