In fact, when drugs are legalized, use sometimes goes down, it's been claimed. Part of the reason is that teenage kids use illicit drugs because they are illicit. They are thumbing their noses at society. If they were legal, they might not.

There is a kind of nonlinguistic thought going on which we are trying to represent in language, and we know that sometimes we fail.

On the other hand, a lot of the internet - I don't know the percentage, but I am sure a great mass of internet use - is pretty superficial interaction amongst people. Its not necessarily a bad thing. A teenager wants to talk to her friend, that's fine, but I think it probably contributes to atomization, which is a threat to the society.

Trump keeps the spotlight on himself with one act after another, assuming correctly that yesterday's antics will be swept aside by today's.

In the United States everyone is an illegal immigrant - everyone except the people in Indian Reservations. This is an immigrant society.

That's a point that Dan Ellsberg has made for years. He said it's kind of like if you and I go into a grocery store to rob it, and I have a gun. The guy may give you the money in the cash register. I'm using the gun even if I don't shoot. Well that's nuclear weapons - essential to post-war deterrence - they cast a shadow over everything.

The [Ronald] Reagan administration picked up the rhetoric of the anti-nuclear movement; they said "Yyeah, you're right." We have to eliminate nuclear weapons.