The pendulum of the mind oscillates between sense and nonsense, not between right and wrong.

A wise man can learn more from a foolish question than a fool can learn from a wise answer.

Every aquarium will eventually leak.

Creativity is the greatest rebellion in existence.

Science may set limits to knowledge, but should not set limits to imagination.

As our case is new, we must think and act anew.

Turn your wounds into wisdom.

It has seemed to be more necessary to have regard to the weight of words rather than to their number.

The more skilled you are at something, the worse you are at it when showing someone.

It takes a great man to be a good listener.

To kill an error is as good a service as, and sometimes even better than, the establishing of a new truth or fact

Yes, I guess you could say I am a loner, but I feel more lonely in a crowed room with boring people than I feel on my own.

The greatest of all mistakes is to do nothing because you think you can only do a little

We seldom realize, for example that our most private thoughts and emotions are not actually our own. For we think in terms of languages and images which we did not invent, but which were given to us by our society.

No one can make you feel inferior without your consent.

An intelligent hell would be better than a stupid paradise.

Generosity is giving more than you can, and pride is taking less than you need.

Fear doesn't exist anywhere except in the mind.

To be wronged is nothing unless you continue to remember it.

Without courage, wisdom bears no fruit.

It is neither good nor bad, but thinking makes it so.