The expression I use: Pain + Reality = Progress. Whenever I would have a painful mistake, I started to view that as puzzles that would give me gems if I could solve the puzzle. So, it made me thoughtful - what should I do differently next time? That was the puzzle. And the gem was some principle for handling the same thing when it came along again, and then I would write it down. And by writing it down and referring to it, and also being able to show it to other people so that we could agree that that was a good way of handling that thing - that was very, very powerful.

Forget about what the technology is. Just understand the motivation behind it.

When people get at each other's throat, the rich and the poor and the Left and the Right and so on, and you have a basic breakdown, that becomes very threatening.

People who worry about looking good typically hide what they don't know and hide their weaknesses, so they never learn how to properly deal with them and these weaknesses remain impediments in the future.

I'm scared of one man, one vote because it suggests that everybody has an equal ability at making decisions, and I think that's dangerous.

Don't worry about looking good - worry about achieving your goals.

When growth is slower than expected, stocks go down. When inflation is higher than expected, bonds go down. When inflation's lower than expected, bonds go up.