Try to learn something about everything and everything about something.

Learn what is true in order to do what is right.

My business is to teach my aspirations to confirm themselves to fact, not to try and make facts harmonize with my aspirations.

Time, whose tooth gnaws away everything else, is powerless against truth.

It is one of the most saddening things in life that, try as we may, we can never be certain of making people happy, whereas we can almost always be certain of making them unhappy.

Question everything. Learn something. Answer nothing.