The psychologist Elizabeth Loftus has shown great courage, in the face of spiteful vested interests, in demonstrating how easy it is for people to concoct memories that are entirely false but which seem, to the victim, every bit as real as true memories.

We have sexual lust even though we know perfectly well that, because we're using contraception, it is not going to result in the propagation of our genes. That doesn't matter, because the lust was built into our brains at a time when there was no contraception.

You can make some inferences about a man's character if you know something about the conditions in which he has survived and prospered.

Words are our servants, not our masters. For different purposes, we find it convenient to use words in different senses.

Maybe somewhere in some other galaxy there is a super-intelligence so colossal that from our point of view it would be a god. But it cannot have been the sort of God that we need to explain the origin of the universe, because it cannot have been there that early.

My last vestige of 'hands off religion' respect disappeared in the smoke and choking dust of September 11, 2001, followed by the 'National Day of Prayer,' when prelates and pastors did their tremulous Martin Luther King impersonations and urged people of mutually incompatible faiths to hold hands, united in homage to the very force that caused the problem in the first place.

Again, it is belief without evidence. In the case of Stalinism, people actually distorted science, because it was for the good of the Communist Party.