Our greatest ability as humans is not to change the world; but to change ourselves.

If you want to change the world, start with yourself.

I don't know how to change the world, but I know if I keep talking about how dirty it is out here, somebody is going to clean it up.

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

The oldest habit in the world for resisting change is to complain that unless the remedy to the disease should be universally applied it should not be applied at all. But you must start somewhere.

If you want to change the world, go home and love your family.