The human digestive and visual systems did clearly evolve over a very long period.

In the 1960s, there was a point, 1968, '69, when there was a very strong antiwar movement against the war in Vietnam. But it's worth remembering that the war in Vietnam started - an outright war started in 1962.

Human physical structures and intellectual structures are generally studied in different ways. The assumption is that physical structures are genetically inherited and intellectual structures are learned. I think that this assumption is wrong. None of these structures is learned. They all grow; they grow in comparable ways; their ultimate forms are heavily dependent on genetic predispositions.

Our ignorance can be divided into problems and mysteries. When we face a problem, we may not know its solution, but we have insight, increasing knowledge, and an inkling of what we are looking for. When we face a mystery, however, we can only stare in wonder and bewilderment, not knowing what an explanation would even look like.

Language etches the grooves through which your thoughts must flow.

Language would have evolved first as an internal object, a kind of "language of thought" (LOT), with externalisation (hence communication) an ancillary process. I can't review here the strong and growing evidence to support this conclusion, but I have elsewhere. There are ample reasons why having a LOT would confer selectional advantage: the person so endowed could plan, interpret, reflect, etc., in ways denied to others.

That's a large part of the source of the gun culture. You have to have a gun when you go into Starbucks, because who knows what's going to happen. It just doesn't happen in other countries.