You have enemies? Good. That means you've stood up for something, sometime in your life.

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

Coincidence is God's way of remaining anonymous.

A leader leads by example not by force.

Success is going from failure to failure without a loss of enthusiasm.

I'm not an atheist and I don't think I can call myself a pantheist. We are in the position of a little child entering a huge library filled with books in many different languages. The child knows someone must have written those books. It does not know how. The child dimly suspects a mysterious order in the arrangement of the books but doesn't know what it is. That, it seems to me, is the attitude of even the most intelligent human being toward God.

He who is not contented with what he has, would not be contented with what he would like to have.

Computers are incredibly fast, accurate and stupid. Human beings are incredibly slow, inaccurate and brilliant. Together they are powerful beyond imagination.

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

"I do not fear death. I had been dead for billions and billions of years before I was born, and had not suffered the slightest inconvenience from it."