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.

I learned that everyone makes mistakes and has weaknesses and that one of the most important things that differentiates people is their approach to handling them. I learned that there is an incredible beauty to mistakes, because embedded in each mistake is a puzzle, and a gem that I could get if I solved it, i.e. a principle that I could use to reduce my mistakes in the future.

Unlike in school, in life you don't have to come up with all the right answers. You can ask the people around you for help - or even ask them to do the things you don't do well. In other words, there is almost no reason not to succeed if you take the attitude of 1) total flexibility - good answers can come from anyone or anywhere (and in fact, as I have mentioned, there are far more good answers 'out there' than there are in you) and 2) total accountability: regardless of where the good answers come from, it's your job to find them.

The big question is: When will the term structure of interest rates change? That's the question to be worried about.

Know what your people are like, and make sure they do their jobs excellently.

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.

What matters most is that the people you work with share your values.