Be not afraid of life. Believe that life is worth living, and your belief will help create the fact.

The history of philosophy is to a great extent that of a certain clash of human temperaments.

To study the abnormal is the best way of understanding the normal.

Whenever you're in conflict with someone, there is one factor that can make the difference between damaging your relationship and deepening it. That factor is attitude.

One of the most exciting aspects of 23andMe is that we're enabling you to watch a revolution unfold live during your lifetime, and I think that the decoding of the genome, in my opinion, is the most fascinating discovery of our lifetime, and you get to be part of it.

I am honorary President of the American Humanist Society, having succeeded the late, great science fiction writer Isaac Asimov in that utterly functionless capacity. We Humanists behave as well as we can, without any rewards or punishments in an Afterlife.

Human Nature is the only science of man; and yet has been hitherto the most neglected.

A poem in form still has to have voice, gesture, a sense of discovery, a metaphoric connection, as any poetry does.