The best life is the one in which the creative impulses play the largest part and the possessive impulses the smallest.

For over two thousand years it has been the custom among earnest moralists to decry happiness as something degraded and unworthy

If I were granted omnipotence, and millions of years to experiment in, I should not think Man much to boast of as the final result of all my efforts.

The more we realize our minuteness and our impotence in the face of cosmic forces, the more amazing becomes what human beings have achieved.

No great achievement is possible without persistent work.

Life and hope for the world are to be found only in the deeds of love.

We believe, first and foremost, what makes us feel that we are fine fellows.