To stay young requires unceasing cultivation of the ability to unlearn old falsehoods.

The early worm deserves the bird.

Never encourage a man to cook breakfast; it cause him to wonder if women are necessary.

The 3-legged stool of understanding is held up by history, languages, and mathematics. Equipped with those three you can learn anything you want to learn. But if you lack any one of them you are just another ignorant peasant with dung on your boots.

I believe in my neighbors. I know their faults and I know that their virtues far outweigh their faults.

Stupidity cannot be cured with money, or through education, or by legislation.

Man has no moral instinct. He is not born with moral sense. You were not born with it, I was not - and a puppy has none. We acquire moral sense, when we do, through training, experience, and hard sweat of the mind.