Apart from their openness, the other characteristic Pyke thought was typical of his subjects was their pragmatism. “A number of them, when you started to talk about other philosophers, would say something like they had wasted an hour reading this person’s book twenty years ago. There seems to be a lot of intolerance. Really what that’s about is the feeling that time is short.” (Source)
Philosophers are rather smart people, but I’ve never trusted their judgment. Steven Pyke also has some nice pictures of them.