I have heard myself accused of being an opponent, an enemy of mathematics, which no one can value more highly than I, for it accomplishes the very thing whose achievement has been denied me.

Every man must form himself as a particular being, seeking, however, to attain that general idea of which all mankind are constituents.

No one should be rich except those who understand it.

Money lost, something lost. Honor lost, much lost. Courage lost, everything lost-better you were never born

What we don't understand we don't possess.

To have more, you must first be more.

There is nothing worse than aggressive stupidity.