According to the most common interpretation of biblical prophecy, Jesus will return only after things have gone horribly awry. Imagine the consequences if any significant component of the U.S. government believed that the world was about to end and that its ending would be glorious. The fact that nearly half of the American population apparently believes this should be considered a moral and intellectual emergency.

Becoming a part of a movement doesn't help anybody think clearly.

Ideas matter—and philosophy is the art of thinking about them rigorously. In my view, that should be done in as public a forum as possible.

If you're constantly ruminating about what you just did- or what you should have done- or what you would have done if you only had the chance, you will miss your life. Ok, you will fail to connect with it. You will fail to connect with other people.

Science is the most durable and nondivisive way of thinking about the human circumstance. It transcends cultural, national, and political boundaries. You don't have American science versus Canadian science versus Japanese science.

I consistently encounter people in academic settings and scientists and journalists who feel that you can't say that anyone is wrong in any deep sense about morality, or with regard to what they value in life. I think this doubt about the application of science and reason to questions of value is really quite dangerous.

The freedom to think out loud on certain topics, without fear of being hounded into hiding or killed, has already been lost.

Water is two parts hydrogen and one part oxygen. What if someone says, “Well, that’s not how I choose to think about water.”? All we can do is appeal to scientific values. And if he doesn’t share those values, the conversation is over. If someone doesn’t value evidence, what evidence are you going to provide to prove they should value it? If someone doesn’t value logic, what logical argument could you provide to show the importance of logic?

Death is, in some ways, unacceptable. It's just an astonishing fact of our being here that we die; but I think worse than that is if we live long enough, we lose everyone we love in this world. I mean people die and disappear, and we're left with this stark mystery: just the sheer not knowing of what happened to them.