Progress is impossible without change, and those who cannot change their minds cannot change anything.

When we are no longer able to change a situation - we are challenged to change ourselves.

Never believe that a few caring people can't change the world. For, indeed, that's all who ever have.

If you're in a bad situation, don't worry it'll change. If you're in a good situation, don't worry it'll change.

The main dangers in this life are the people who want to change everything... or nothing.

Very often a change of self is needed more than a change of scene.

You must be the change you wish to see in the world.

Because things are the way they are, things will not stay the way they are.

To improve is to change to be perfect is to change often.

One must change one's tactics every ten years if one wishes to maintain one's superiority.