Moderation in temper is always a virtue; but moderation in principle is always a vice.

Great dreams of great dreamers are always transcended.

Your visions will become clear only when you can look into your own heart. Who looks outside, dreams; who looks inside, awakes.

It is necessary to keep one's compass in one's eyes and not in the hand, for the hands execute, but the eye judges.

Each problem that I solved became a rule which served afterwards to solve other problems.

There is a wisdom of the head, and... there is a wisdom of the heart.

Today you are you! That is truer than true! There is no one alive who is you-er than you!

When you learn, teach, when you get, give.

The only way to get the best of an argument is to avoid it.

When you dance, your purpose is not to get to a certain place on the floor. It's to enjoy each step along the way.

The only real laughter comes from despair.

The absent are never without fault, nor the present without excuse.

The wise man should restrain his senses like the crane and accomplish his purpose with due knowledge of his place, time and ability.

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

Confidence is contagious. So is lack of confidence.

Medicine heals diseases of the body, wisdom frees the soul from passions.

A house divided against itself cannot stand.

If we do not lay out ourselves in the service of mankind whom should we serve?

What a man does for others, not what they do for him, gives him immortality.

To a wise and good man the whole earth is his fatherland.

Those who see the invisible can do the impossible.