To be satisfied with what one has; that is wealth.

Man is the only animal that deals in that atorcity of atrocities, War. He is the only one that gathers his brethren about him and goes forth in cold blood and calm pulse to exterminate his kind.

My books are like water; those of the great geniuses are wine. (Fortunately) everybody drinks water.

The cat, having sat upon a hot stove lid, will not sit upon a hot stove lid again. Nor upon a cold stove lid.

One of my theories is that the hearts of men are about alike, no matter what their skin color.

You cannot have a theory without principles. Principles is another name for prejudices.

What would men be without women? Scarce, sir...mighty scarce.