Climate change involves fundamental choices about how we want to live and what kind of world we want.

Increasingly both environmentalists and animal ethicists recognize the enormous destruction caused by animal agriculture.

You can't imagine anything like nature as we know it without predators.

We think of history as another specialization, like philosophy of language, rather than as something that informs everything we do and think.

I see a lot of individual action when it comes to environmental questions really as a form of politics as a way of communicating with political leaders, much in the same way that acts of civil disobedience during the civil rights' movement were really acts of political communication, trying to get laws changed rather than based on the thought that the individual action would really change the practices of segregation.

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

I became religious and at 14 went to a boarding school 500 miles from home to begin theological studies. By the time I started university, politics had replaced religion in the economy of my enthusiasms but I had no idea what to study. My boarding school emphasized languages which I was bad at, and deemphasized math and science which I was good at.