The secret of change is to focus all of your energy, not on fighting the old, but on building the new.

Nobody can hurt me without my permission.

I am not an Athenian or a Greek, but a citizen of the world.

A man is but the product of his thoughts. What he thinks he becomes.

Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world.

Turn and face the strange.

The future depends on what you do today.

You never change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete.

Education is the most powerful weapon which you can use to change the world.