World views are social constructions and they channel the search for facts. But facts are found and knowledge progresses, however fitfully.

The human mind delights in finding pattern—so much so that we often mistake coincidence or forced analogy for profound meaning. No other habit of thought lies so deeply within the soul of a small creature trying to make sense of a complex world not constructed for it.

Life is short, and potential studies infinite. We have a much better chance of accomplishing something significant when we follow our passionate interests and work in areas of deepest personal meaning.

Asian Homo erectus died without issue and does not enter our immediate ancestry (for we evolved from African populations); Neanderthal people were collateral cousins, perhaps already living in Europe while we emerged in Africa... In other words, we are an improbable and fragile entity, fortunately successful after precarious beginnings as a small population in Africa, not the predictable end result of a global tendency. We are a thing, an item of history, not an embodiment of general principles.

The fundamentalists, by 'knowing' the answers before they start, and then forcing nature into the straitjacket of their discredited preconceptions, lie outside the domain of science - or any honest intellectual inquiry.

Any decent writer writes because there's some deep internal need to keep learning.

Any human being is really good at certain things. The problem is that the things you're good at come naturally. And since most people are pretty modest instead of an arrogant S.O.B. like me, what comes naturally, you don't see as a special skill. It's just you. It's what you've always done.