I can't stand clutter. I can't stand piles of stuff. And whenever I see it, I basically just throw the stuff away.

The absolute worst thing that you ever can do, in my opinion, in bringing science to the general public, is be condescending or judgmental. It is so opposite to the way science needs to be brought forth.

I like 'The Simpsons' quite a lot. I love the irreverent character of the whole show. It's great.

Physicists are more like avant-garde composers, willing to bend traditional rules... Mathematicians are more like classical composers.

My best teachers were not the ones who knew all the answers, but those who were deeply excited by questions they couldn't answer.

Assessing existence while failing to embrace the insights of modern physics would be like wrestling in the dark with an unknown opponent.

We do not know whether there are extra dimensions or multiverse. Let's go forward with the possible ideas that come out of the mathematics. It's hard for us to imagine a universe that would have no time at all.