Logic will get you from A to Z, imagination will get you everywhere.

It's not what you are that holds you back, it's what you think you are not.

A clever person solves a problem. A wise person avoids it.

Whatever you are, be a good one.

I have no special talents. I am only passionately curious.

When people talk, listen completely. Don't be thinking what you're going to say. Most people never listen.

If you can't explain it to a six year old, you don't understand it yourself.

Only a life lived for others is a life worthwhile.

Once we accept our limits, we go beyond them.