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

First they ignore you, then they laugh at you, then they fight you, then you win.

Nobody can hurt me without my permission.

Intelligence is the ability to adapt to change.

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.

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

Everyone thinks of changing the world, but no one thinks of changing himself.

Those who cannot change their minds cannot change anything.