We must progress to the stage of doing all the right things for all the right reasons instead of doing all the right things for all the wrong reasons.

When I am working on a problem, I never think about beauty but when I have finished, if the solution is not beautiful, I know it is wrong.

All of humanity is in peril of extinction if each one of us does not dare, now and henceforth, always to tell only the truth, and all the truth, and to do so promptly - right now.

The most important thing about Spaceship Earth - an instruction book didn't come with it.

The purpose of our lives is to add value to the people of this generation and those that follow.

Always tell only the truth, and all the truth, and do so promptly - right now.

Ninety-nine per cent of who you are is invisible and untouchable.