What was tortuously secured by complex argument becomes widely shared intuition, so obvious that we forget its provenance. We don’t see it, because we see with it.

I'm a Spinozist. I believe in reason. I think all the progress that we've made making this a better world have been because of reason and not religion. I think religion has been pulled along by reason and that's why we read The Bible now so differently, even believers.

What is love? When you love somebody then I mean we all want good things to happen to ourselves and keep the bad things at bay. When you love somebody you want that as much for them if not more than you do for yourself.

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.

It was while I was studying philosophy that I came to understand. . . that it is no sign of moral or spiritual strength to believe that for which one has no evidence, neither a priori evidence as in math, nor a posteriori evidence as in science. . . . It's a violation almost immoral in its transgressiveness to shirk the responsibilities of rationality.

Philosophy addresses, in a systematic and progress-making way, questions of deep concern to everyone.

When the first people started to argue against slavery, for example, this was a new idea. If you crowd-source, you'd never come up with this. And so the - exactly the kind of progress we've made couldn't be made if we depend it on crowd-sourcing.