Donald Trump doesn't have clear contact with reality, though I'm not sure it qualifies as a bona fide delusion. He needs things to be a certain way even though they aren't, and that's one reason he lies. There can also be a conscious manipulative element to it. When he put forward, and politically thrived on, the falsehood of President Obama's birth in Kenya, outside the United States, he was manipulating that lie as well as undoubtedly believing it in part, at least in a segment of his personality.

It may sound terrible, but I often say that the military saved me from a conventional life in the United States and I've never really thanked them for it, because I haven't exactly been pro-military in my work.

The other thing that happened was my last military assignment - this was in the air force; I had enlisted in order to avoid being drafted as a private, and of course I only practiced medicine or psychiatry in the air force so I was never in any kind of violent combat.

We have a duty to warn on an individual basis if we are treating someone who may be dangerous to herself or to others - a duty to warn people who are in danger from that person. We feel it's our duty to warn the country about the danger of this president. If we think we have learned something about Donald Trump and his psychology that is dangerous to the country, yes, we have an obligation to say so.

I'm a Brooklyn boy. I was born in Brooklyn, New York, and raised there, and spent most of my childhood there.

Again, I was influenced by my father, who was very much an atheist and took pride in combating the traditional or orthodox forms of Judaism, which his parents and which my mother's parents were very steeped in.

I don't have the feeling that as a very young person I read books that absolutely made their mark on my mind.