We may encounter many defeats but we must not be defeated.

Proverbs are short sentences drawn from long experience.

Those who dance are considered insane by those who cannot hear the music.

Men are not prisoners of fate, but only prisoners of their own minds.

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

Stupidity is a talent for misconception.

Rational discussion is useful only when there is a significant base of shared assumptions.

Bitterness is like cancer. It eats upon the host. But anger is like fire. It burns it all clean.

Every aquarium will eventually leak.

In the practice of tolerance, one's enemy is the best teacher.

Almost every wise saying has an opposite one, no less wise, to balance it.

Courage, above all things, is the first quality of a warrior.

Only idiots refuse to change their minds.

A precedent embalms a principle.

There's no sense in being precise when you don't even know what you're talking about.

It's not a question of learning much.On the contrary.It's a question of UNLEARNING much.

If we can really understand the problem, the answer will come out of it, because the answer is not separate from the problem.

The essence of knowledge is, having it, to apply it; not having it, to confess your ignorance.

Sometimes you will never know the value of a moment until it becomes a memory.

Above all be of single aim; have a legitimate and useful purpose, and devote yourself unreservedly to it.

I think, therefore I am.