Every carbon atom in every living thing on the planet was produced in the heart of a dying star.

Not caring is absolute freedom, and if you own it, all the way, it emits supreme confidence.

Imagination is what has driven human progress since very early times.

I still can't spell anything, but I can bust out two-dollar words.

Mile by mile, it's a trial; yard by yard, it's hard; but inch by inch, it's a cinch.

The winds were warm about us, the whole earth seemed the wealthier for our love.

Fundamentalism is a 20th-century phenomenon, but that kind of religious fervor actually has not always been associated with conservative goals.

All great truths begin as blasphemy. Every single revolutionary idea that has ever been visited upon the human experience began as an idea which was rejected.

In fact, a child is not even considered a human being.

I strongly urge students to learn to take risks, to be bold, to let their genius convert that fear into power and brilliance.

Sometimes you feel like you have to do research to make something, other times you know you don't feel it so much.