Everyone loves a hero. What we differ on is the question of who the heroes are, because we differ over what matters. And who matters is a function of what matters. [If] what matters is intelligence, the people who matter are the intelligent, and the people who matter the most, the heroes, are the geniuses.

To matter, to mind. ... What we mind is in our power, but whether we matter may not be - and there's the tragedy. ... Can anyone truthfully say, I don't matter and I don't mind?

One of the interesting things about the ancient Greeks is that they really didn't have our conception of individual rights. They didn't have our conception of all lives matters. And it was really was true for them, that certain lives matter a lot more than others. It didn't dawn on them that all lives, although different, can be lives of equal mattering. And that is actually something a huge ethical lesson.

Having your husband at a party is like adding anchovies to a salad. I love anchovies, but you can't taste anything else.

If we don't understand our tools, then there is a danger we will become the tool of our tools. We think of ourselves as Google's customers, but really we're its products.

God doesn't help. I think that's a knockdown argument. I think that it really shows that whatever moral knowledge we have and whatever moral progress we make in our knowledge or whatever progress we make in our moral knowledge is not coming really from religion. It's coming from the very hard work really of moral philosophy, of trying to ground our moral reasonings.

I would say to anybody who thinks that all the problems in philosophy can be translated into empirically verifiable answers - whether it be a Lawrence Krauss thinking that physics is rendering philosophy obsolete or a Sam Harris thinking that neuroscience is rendering moral philosophy obsolete - that it takes an awful lot of philosophy - philosophy of science in the first case, moral philosophy in the second - even to demonstrate the relevance of these empirical sciences.