Never do anything when you are in a temper, for you will do everything wrong.

If you do not know the laws of right conduct, you cannot form your character.

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

A scholar who cherishes the love of comfort is not fit to be deemed a scholar.

The most courageous act is still to think for yourself. Aloud.

There is an art, or rather a knack to flying. The knack lies in learning how to throw yourself at the ground and miss.

Stubborn and ardent clinging to one's opinion is the best proof of stupidity.

If you don't behave as you believe, you will end by believing as you behave.

Nothing is softer or more flexible than water, yet nothing can resist it.

Colorless green ideas sleep furiously

Experience is the only prophecy of wise men.

Everything excellent is as difficult as it is rare.

One who gains strength by overcoming obstacles possesses the only strength which can overcome adversity.

Men build too many walls and not enough bridges.

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

Learning and wisdom are superfluities, the surface glitter merely, but it is the heart that is the seat of all power.

It takes a lot of courage to show your dreams to someone else.

When I stand before God at the end of my life, I would hope that I would not have a single bit of talent left, and could say, 'I used everything you gave me'.

Wisdom begins at the end.

The oldest, shortest words- 'yes' and 'no'- are those which require the most thought.

The lie is a condition of life.