Nature is a machine. The family is a machine. The life cycle is like a machine.

The world is still in deleveraging.

Watch out for people who think it's embarrassing not to know.

Since the only way you are going to find solutions to painful problems is by thinking deeply about them - i.e., reflecting - if you can develop a knee-jerk reaction to pain that is to reflect rather than to fight or flee, it will lead to your rapid learning/evolving.

The biggest mistake investors make is to believe that what happened in the recent past is likely to persist. They assume that something that was a good investment in the recent past is still a good investment. Typically, high past returns simply imply that an asset has become more expensive and is a poorer, not better, investment.

To test if you are worrying too much about looking good, observe how you feel when you find out you've made a mistake or don't know something.

I don't think there is such a thing as the perfect system.