Every step of progress means a duty repudiated, and a scripture torn up.

Two people getting together to write a book is like three people getting together to have a baby. One of them is superfluous.

Seemingly unreasonable people attempt to adapt the world to themselves. Much progress, therefore, depends on such people.

A nap, my friend, is a brief period of sleep which overtakes superannuated persons when they endeavor to entertain unwelcome visitors or to listen to scientific lectures.

There is no subject on which more dangerous nonsense is talked and thought than marriage.

Laws, religions, creeds, and systems of ethics, instead of making society better than its best unit, make it worse than its average unit, because they are never up to date.

Bible worship, though at its best it may achieve sublimity by keeping its head in the skies, may also make itself both ridiculousand dangerous by having its feet off the ground.