Since for me moral demands necessarily flow from human psychology, I don't think we can be obliged to do something that we are not motivated in any way to do. In other words, I'm an "internalist" about morality.

Sometimes I say philosophers should be at the table because they're the only people who know that they're not going to walk away with big money to support their research or to fund their crackpot solutions.

[This approach] displays the characteristic philosophical lust to vanquish the skeptic by arguing him out of his skepticism, without appeal to moral and political considerations or to the facts of everyday life. [...] But more often than not, if you give the skeptic everything he wants, then he will be successful in repulsing your attacks and terrorizing your position.

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

Aristotle thought that humans are rational animals and Hobbes thought that we act on the basis of rational self-interest. If only! It's not that we never do these things, it's that they are hardly constituative of who and what we are.

If you're interested in doing something about climate change as we all should be, all of us who care about future people and creatures that will inhabit this world. Then buying a Prius is a good thing but an even better thing would be to be on the streets demanding urgent action from the United States' Congress.

'The anthropocene' refers to the way we live now, in a highly globalized world, characterized by a large human population and powerful technologies that allow for "action at a distance" that aggregate apparently negligible acts into powerful forces that are transforming fundamental planetary systems. In this sense 'the anthropocene' refers to a period in which nature as an independent autonomous domain comes to an end or is under serious threat.