I begin with human psychology and then see what we can say about ethics.

In this era of globalization we are witnessing struggles within individual states about what their identity and interests consist in.

We live on a restless planet in a violent universe.

Apocalypses don't happen very often. They tend to be separated by tens or even hundreds of millions of years.

Since we're not very good at something as basic as controlling our reproduction, life is really bad for more people than ever before.

Moral revolutions are typically seen retrospectively. Prospectively, the revolutionaries tend to look like crazy people, and sometimes they are.

I take seriously the idea that we are African Apes who (at least for the moment) dominate the planet, but our psychology is pretty much what it was when we were living in small groups on the savanna.

One of the real dangers of our time is people's indifference to history.

Philosophers are smart, analytical, and skeptical. For these reasons they are relatively unbiased.

I'm a subjectivist about morality.

Ethics is prescriptive and can change behavior, but usually only at the margins.

A mistake is simply another way of doing things.

‎'The demon cried, waving its furry arms above his head like a demented orangutan.

A giant once lived in that body. But Matt Brady got lost. Because he was looking for God too high up and too far away.

War is a series of catastrophes which result in victory.

I have frequently been questioned, especially by women, of how I could reconcile family life with a scientific career. Well, it has not been easy.

My parents sacrificed so much for all of us. It makes me want to give back to them by being the best I can be.

Without fear I can acknowledge that the authentic Christian tension is not between life and death, but between life and life.

Her eyes met his, but she looked quickly away; entangling gazes with Will was confusing at best, dizzying at worst.

I can't remember my telephone number, but I know it was in the high numbers.

In the unity of our nations rests the glorious future of our peoples.