A man who dares to waste one hour of time has not discovered the value of life.
Man is descended from a hairy, tailed quadruped, probably arboreal in its habits.
If the misery of the poor be caused not by the laws of nature, but by our institutions, great is our sin.
I have called this principle, by which each slight variation, if useful, is preserved, by the term of Natural Selection.
It is not the strongest of the species that survives, nor the most intelligent it is the one that is most adaptable to change.
The universe we observe has precisely the properties we should expect if there is, at bottom, no design, no purpose, no evil, no good, nothing but blind, pitiless indifference.
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 everyone takes a salutory pleasure in proving their falseness.
The assumed instinctive belief in God has been used by many persons as an argument for His existence. But this is a rash argument, as we should thus be compelled to believe in the existence of cruel and malignant spirits, only a little more powerful than man for the belief in them is far more general than in a beneficent Diety.