If you say to people that they, as a matter of fact, can't protect their conversations, in particular their political conversations, I think you take a long step toward making a transition from a free society to a totalitarian society.

If you say to people that they, as a matter of fact, can't protect their conversations, in particular their political conversations, I think you take a long step toward making a transition from a free society to a totalitarian society.

If you have ambition, you might not achieve anything, but without ambition, you are almost certain not to achieve anything.

I have been working on two problems for three years: one of them for 8 or 9 years, and one of them for 3, 4, 5 years.

Without strong encryption, you will be spied on systematically by lots of people.

I liked Berkeley tremendously, Berkeley was a very leftist campus. I came to love that city as much as I love Paris or the south of France or New York.

I have always believed the thesis that one's politics and the character of one's intellectual work are inseparable.