I respect the man who knows distinctly what he wishes. The greater part of all mischief in the world arises from the fact that men do not sufficiently understand their own aims. They have undertaken to build a tower, and spend no more labor on the foundation than would be necessary to erect a hut.

Half the world is composed of idiots, the other half of people clever enough to take indecent advantage of them.

We should take care not to make the intellect our god; it has, of course, powerful muscles, but no personality.

What lies behind us and what lies ahead of us are tiny matters compared to what lives within us.

Some people like my advice so much that they frame it upon the wall instead of using it.

Everyone complains of his lack of memory, but nobody of his want of judgment.

Modesty is a vastly overrated virtue.

Mankind must put an end to war, or war will put an end to mankind.

Who so loves believes the impossible.

Insanity -- a perfectly rational adjustment to an insane world.