There are two primary choices in life: to accept conditions as they exist, or accept the responsibility for changing them.

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.

Think good, and good follows. Think evil, and evil follows. You are what you think all day long.

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

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

Turn and face the strange.

Happiness is when what you think, what you say, and what you do are in harmony.

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