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.

Intelligence is the ability to adapt to change.

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

Turn and face the strange.

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

If you think we can't change the world, it just means you're not one of those what will.

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

Those who cannot change their minds cannot change anything.