Complexity - limits competition.

My view is that an investor is better off knowing a lot about a few investments than knowing a little about each of a great many holdings. One's very best idea's are likely to generate higher returns for a given level of risk than one's hundredth or thousandth best idea.

When managers are afraid of redemptions, they get liquid. We all saw how many managers went from leveraged long in 2007 to huge net cash in 2008, when the right thing to do in terms of value would have been to do the opposite.

The best protection against risk is knowing what you are doing.

When you buy bargains and they become better bargains, it is easy to start to question yourself, which can impair your judgement. Real or imagined concerns about client redemptions, employee defections can greatly influence behavior away from rational.

It's awful to have a depression, but it's a great thing to have a depression mentality because it means that we are not speculating, we are not living beyond our means, we don't quit our job to take a big risk because we know we might not get another job. There is something stable about a country, a society built on those values.

The single greatest edge an investor can have is a long-term orientation.