Illogical thinkers throw names and slurs around because they have no arguments with which to rebut their opponents. Rational people have to keep hammering their points home.

I think a major element of jetlag is psychological. Nobody ever tells me what time it is at home.

If I were running to be somebody there are a lot of easier sombodies to be. After all running against the incumbent governor of your own party in your home state is not the next logical step in a political life.

Children who cling to parents or who don't want to leave home are stunted in their emotional psychological growth.

Of course nobody would deny the importance of human beings for theological thinking but the time span of history that theologians think about is a few thousand years of human culture rather than the fifteen billion years of the history of the universe.

If I were beginning my career today I don't think I would take the same direction. Television is at a crossroads at the moment. And although I am not up to date technologically I suspect that somewhere out there people are conveying things about natural history by means other than television and I think if I were beginning today I'd be there.

History is malleable. A new cache of diaries can shed new light and archeological evidence can challenge our popular assumptions.

The principle that human nature in its psychological aspects is nothing more than a product of history and given social relations removes all barriers to coercion and manipulation by the powerful.

Man is not logical and his intellectual history is a record of mental reserves and compromises. He hangs on to what he can in his old beliefs even when he is compelled to surrender their logical basis.

I suspect the psychological pressure associated with that crisis caused the first mental blackout I had ever suffered. It contributed to a deterioration in my health that later required the insertion of a heart pacemaker.