The human psyche has two great sicknesses: the urge to carry vendetta across generations, and the tendency to fasten group labels on people rather than see them as individuals. Abrahamic religion gives strong sanction to both-and mixes explosively with both. Only the willfully blind could fail to implicate the divisive force of religion in most, if not all, of the violent enmities in the world today.

We have to find our own purposes in life, which are not derived directly from our scientific history.

Do you really mean to tell me the only reason you try to be good is to gain God's approval and reward, or to avoid his disapproval and punishment? That's not morality, that's just sucking up, apple-polishing, looking over your shoulder at the great surveillance camera in the sky, or the still small wiretap inside your head, monitoring your every move, even your every base though.

The important thing to remember about mathematics is not to be frightened

Faith is not the opposite of reason.

What are all of us but self-reproducing robots? We have been put together by our genes and what we do is roam the world looking for a way to sustain ourselves and ultimately produce another robot child.

We are going to die, and that makes us the lucky ones. Most people are never going to die, because they are never going to be born. The number of people who could be here, in my place, out number the sand grains in the Sahara. If you think about all the different ways in which our genes could be permuted, you and I are quite grotesquely lucky to be here. The number of events that had to happen in order for you to exist, in order for me to exist... we are privileged to be alive and nd we should make the most of our time on this world.