Woe to him who teaches men faster than they can learn.

In the midst of unprecedented learning popular ignorance flourished, and chose its exemplars to rule the great cities of the world.

Great men speak to us only so far as we have ears and souls to hear them; only so far as we have in us the roots, at least, of that which flowers out in them.

Friends are helpful not only because they will listen to us, but because they will laugh at us; Through them we learn a little objectivity, a little modesty, a little courtesy; We learn the rules of life and become better players of the game

Inquiry is fatal to certainty.