Experiments work when, and only when, they call into action cognitive capacities that might reliably deliver the conclusions drawn.

I'm often quite gloomy about the prospects for the human future. But, although I have no competence to intervene directly in a political movement, I hope that what I write may, in combination with the suggestions of others, cause a shift in perspective that will inspire a world-wide movement to accept the only solution to climate change. And before it's too late.

The result can be quite new - perhaps a tendency to judge that something we've never conceived of is possible, or to feel sympathy for a trait or a type of person whom we've regarded with indifference or even hostility.

When I try to outline the history of ethical life, it's sometimes possible to find evidence for a hypothesis about how important transitions actually went. Often, however, that isn't so. There are many facts about human life in the Paleolithic we're never likely to know.

For a pragmatist like me, the important issues concern the words we might deploy to achieve our purposes, rather than the language we actually use.

Anxieties about ourselves endure. If our proper study is indeed the study of humankind, then it has seemed-and still seems-to many that the study is dangerous. Perhaps we shall find out that we were not what we took ourselves to be. But if the historical development of science has indeed sometimes pricked our vanity, it has not plunged us into an abyss of immorality. Arguably, it has liberated us from misconceptions, and thereby aided us in our moral progress.

Think about Mann's own daily routine (ascribed to Aschenbach), read the extant diaries and the letters in which he discusses the novella's themes, and it won't be so obvious that the attraction to Tadzio is completely unprecedented; it also won't be obvious that what Aschenbach wants is full sexual contact.