Why is it that, among men, physical courage is a trait so plenteous yet moral courage is a trait so rare?

There is more real pleasure to be gotten out of a malicious act, where your heart is in it, than out of thirty acts of a nobler sort.

Truth is more of a stranger than fiction. When in doubt, tell the truth. If you tell the truth, you don't have to remember anything. Most writers regard the truth as their most valuable possession, and therefore are economical in its use.

It now seems plain to me that that theory ought to be vacated in favor of a new and truer one...the Descent of Man from the Higher Animals.

Synergy - the bonus that is achieved when things work together harmoniously.

Fortune knocks at every man's door once in a life, but in a good many cases the man is in a neighboring saloon and does not hear her.

Loyalty is a word which has worked vast harm; for it has been made to trick men into being "loyal" to a thousand iniquities, whereas the true loyalty should have been to themselves - in which case there would have ensured a rebellion, and the throwing off of that deceptive yoke.