I am to a fault an introspective person. But I am not a reflective person - except for a big mistake, and then I really think about it.
I was at my best at a little past forty, when I was a professor at Oxford.
I've always been really athletic, which really helped, because when I first started doing the training for Bulletproof Monk, it required so much strength that if I didn't have a base I don't really know what I would have done.

