And I urge you to please notice when you are happy, and exclaim or murmur or think at some point, 'If this isn't nice, I don't know what is.'

It is necessary from the very nature of things that power should be a check to power.

Science is not only compatible with spirituality; it is a profound source of spirituality.

A creative man is motivated by the desire to achieve, not by the desire to beat others.