It's true that many say that [they] object to the idea of "human nature," but it's not clear what that is supposed to mean. Are we different from ants?

Some may remember, if you have good memories, that there used to be a concept in Anglo-American law called a presumption of innocence, innocent until proven guilty in a court of law. Now that's so deep in history that there's no point even bringing it up, but it did once exist.

The Japanese bombing of Pearl Harbor led to many very good things. If you follow the trail, it led to kicking Europeans out of Asia - that saved tens of millions of lives in India alone.

What can one say about a country where a museum of science in a great city can feature an exhibit in which people fire machine guns from a helicopter at Vietnamese huts, with a light flashing when a hit is scored? What can one say about a country where such an idea can even be considered? You have to weep for this country.

It's this kind of wild unpredictability, megalomania, thin-skinned craziness that really has me worried, more than [Donald Trump] statements. Now, on the climate change there's just nothing to say, he's perfectly straightforward.

Groupings of people that get together, think things through, come out to plan and so on, like unions or true political organizations, they've disintegrated. And people tend to be atomized - you get down to a society based on social units based on an atom - an atomic element - which is a person and their computer. Not a society that is going to be able to function freely and democratically. The tendency is there; it doesn't have to be, but its something to worry about.

U.S. has no feudal background, so institutions that remained in place in Europe did not remain in place here.