Never doubt that a small group of thoughtful, committed citizens can change the world; indeed, it's the only thing that ever has.

Things should be made as simple as possible, but not any simpler.

When nothing is sure, everything is possible.

Do what you can, with what you have, where you are.

Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover.

The beginning of knowledge is the discovery of something we do not understand.

Attitude is more important than reality.

To accomplish great things, we must dream as well as act.

The first step to getting the things you want out of life is this: Decide what you want.

Try not to become a man of success but rather to become a man of value.