There are physical characteristics which are inherited. These include things like good looks, high intelligence, physical coordination. These attributes contribute to success in life, and success in life is a determinant of optimism.

I've been bothered about time generally and our tripartite division of time into past, present, and future. I think I know what the past is, and I think I know what future is, but I'm really not comfortable with the notion of present.

I'm all for past influences; the question is whether they are deterministic. Freud and the behaviorists argue that what we are at any given moment is billiard balls whose past determines our future course. That doesn't take into account that we are forever generating internal representations of positive futures and choosing among them.

The goal of a life free of dysphoria is a snare and a delusion. A better goal is of good commerce with the world. Authentic happiness, astonishingly, can occur even in the presence of authentic sadness.

Running is very rhythmic, and I have written a lot of lyrics while out running. It's a very musical exercise, and sometimes I like to sing when I run. Your whole body is doing the same thing.

There may be Peace without Joy, and Joy without Peace, but the two combined make Happiness.

Rules must be established and enforced, and, as numbers are increased in prisons, the necessity for vigilance increases. These rules, let it be understood, may be kindly while firmly enforced. I would never suffer any exhibition of ill-temper or an arbitrary exercise of authority.

In order to resist injuries and stay healthy, you have to be mobile and agile. You have to be able to have your body work for you.