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

Anyone who has never made a mistake has never tried anything new.

Imagine the end desired and feel its reality. Follow it through, and you will get definite results.

Reality leaves a lot to the imagination.

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

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

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.

Things are only as black as they seem.