Many a man fails as an original thinker simply because his memory it too good.

When one has finished building one's house, one suddenly realizes that in the process one has learned something that one really needed to know in the worst way - before one began.

You say that I should be your teacher! See to it that I am your pinion and not your brake.

Evaluation is creation: hear it, you creators! Evaluating is itself the most valuable treasure of all that we value. It is only through evaluation that value exists: and without evaluation the nut of existence would be hollow. Hear it, you creators!

When I contemplated purpose I also contemplated chance and foolishness.

A good aphorism is too hard for the tooth of time, and is not worn away by all the centuries, although it serves as food for every epoch.

Success has always been a great liar.