We need science. We need empirical evidence. We can't just use mathematical reasoning to deduce the nature of the world.

Everybody is struggling to refine their views in opposition to the other people. And that's one of the most important things that philosophy actually has to teach us that you have to air your views and bring them to the table with people - with whom you disagree very much.

Thinking is the soul speaking to itself.

Plato worried that philosophical writing would take the place of living conversations for which, in philosophy, there is no substitute.

One of the peculiar features of philosophical questions is how eager people are to offer solutions that miss the point of the questions. Sometimes these failed solutions are scientific, and sometimes they are religious, and sometimes they are based on what is called plain common sense.

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've got access to your mysterious body but not your mysterious soul. Souls seem to me the loneliest possibility of all.