Experience keeps a dear school, but fools will learn in no other.

Think globally, act locally.

Choose rather to be strong of soul than strong of body.

There are two educations. One should teach us how to make a living and the other how to live.

Common sense is in spite of, not as the result of education.

Knowing is not enough, we must apply. Willing is not enough, we must do.

I don't like definitions, but if there is a definition of freedom, it would be when you have control over your reality to transform it, to change it, rather than having it imposed upon you. You can't really ask for more than that.

Nothing is as easy as it looks.

Knowing yourself is the beginning of all wisdom.

Every act of creation is first an act of destruction.

An understanding of the natural world is a source of not only great curiosity, but great fulfilment.

For we walk by faith, not by sight

You can be rich in spirit, kindness, love and all those things that you can't put a dollar sign on.

All differences in this world are of degree, and not of kind, because oneness is the secret of everything.

Fear doesn't exist anywhere except in the mind.

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

It is always advisable to perceive clearly our ignorance.

Tact is the knack of making a point without making an enemy.

A mistake is always forgivable, rarely excusable and always unacceptable.

The very essence of instinct is that it's followed independently of reason.

Knowledge speaks, but wisdom listens