The philosophers have only interpreted the world, in various ways: the point, however, is to change it.

I'm one of those people that think Thomas Edison and the light bulb changed the world more than Karl Marx ever did.

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

If you want to make the world a better place, take a look at yourself, and make a change.

I alone cannot change the world, but I can cast a stone across the waters to create many ripples.

If you're willing to change the world, let love be your energy.