Anecdotal thinking comes naturally; science requires training.

The actual atoms and molecules that make up my brain and body today are not the same ones that I was born with on September 8, 1954, a half-century ago this month.

Because of the complexity of the problem, environmental skepticism was once tenable. No longer. It is time to flip from skepticism to activism.

But because we live in an age of science, we have a preoccupation with corroborating our myths.

No single discovery from any of these fields denotes proof of evolution, but together they reveal that life evolved in a certain sequence by a particular process.

The question itself [of UFOs] I think is legitimate. It's interesting, it's fascinating. It's mythic in scale and one of the grand questions. It's like the God question or, you know, the meaning-of-life question. It's one of those, on that scale. So you'd have to be made of wood not to be interested and, you know, have they come here? Are they up there?

Religious faith depends on a host of social, psychological and emotional factors that have little or nothing to do with probabilities, evidence and logic.