Plainly, such an approach does not exclude other ways of trying to comprehend the world. Someone committed to it (as I am) can consistently believe (as I do) that we learn much more of human interest about how people think and feel and act by reading novels or studying history than from all of naturalistic psychology, and perhaps always will; similarly, the arts may offer appreciation of the heavens to which astrophysics cannot aspire.

What is "credibility"? It's a very familiar notion. It's basically the notion that is central to the Mafia. So suppose say the Godfather produces some kind of edict and says you're going to have to pay protection money.

There is good reason to believe that we have already entered the Sixth Extinction, a period of destruction of species on a massive scale, comparable to the Fifth Extinction 65 million years ago, when three-quarters of the species on earth were destroyed, apparently by a huge asteroid.

Anywhere in Latin America there is a potential threat of the pathology of caudillismo and it has to be guarded against.

The first thing you ought to do is verify what I present. Just because I say it doesn't make it true. So check it out, see what looks correct, what looks wrong, look at other material which wasn't discussed, figure out what the truth really is. That's what you've got a brain for.

We're now in a situation in which Capital is highly mobile and Labour is basically immobile.

We should not be speaking to, but with. That is second nature to any good teacher.