Human beings function better if they are deceived by their genes into thinking that there is a disinterested objective morality binding upon them, which all should obey.

I think that's my nature, to want to bring people together rather than to try to bombard them into agreement.

Science is not marginal. Like art, it is a universal possession of humanity, and scientific knowledge has become a vital part of our species' repertory. It comprises what we know of the material world with reasonable certainty. . . . Thanks to science and technology, access to factual information of all kinds is rising exponentially.

In the end ... success or failure will come down to an ethical decision, one on which those now living will be judged for generations to come.

Search until you find a passion and go all out to excel in its expression.

These slender little people (Homo Habilis), the size of modern 12 year olds, were devoid of fangs and claws and almost certainly slower on foot than the four legged animals around them. They could have succeeded in their new way of life only by relying on tools and sophisticated cooperative behavior

If everyone agreed to become vegetarian, leaving little or nothing for livestock, the present 1.4 billion hectares of arable land (3.5 billion acres) would support about 10 billion people.