Every generation has its defining works. More than 300,000 people worked to put a man on the moon - including that janitor. Millions of volunteers immunized children around the world against polio. Millions of more people built the Hoover dam and other great projects. These projects didn't just provide purpose for the people doing those jobs, they gave our whole country a sense of pride that we could do great things.

The rest of the world lives to eat, while I eat to live.

What you want, what you're hanging around in the world waiting for, is for something to occur to you.

When great causes are on the move in the world, stirring all men's souls, drawing them from their firesides, casting aside comfort, wealth and the pursuit of happiness in response to impulses at once awe-striking and irresistible, we learn that we are spirits, not animals.

You have to find what sparks a light in you so that you in your own way can illuminate the world.

If you don't know what your passion is, realize that one reason for your existence on earth is to find it.