People who confuse what they wish were true with what is really true create distorted pictures of reality that make it impossible for them to make the best choices.

Almost everything is like a machine.

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.

Never say anything about a person you wouldn't say to them directly, and don't try people without accusing them to their face. Badmouthing people behind their backs shows a serious lack of integrity and is counterproductive. It doesn't yield any beneficial change, and it subverts both the people you are badmouthing and the environment as a whole.

It is a law of nature that you must do difficult things to gain strength and power. As with working out, after a while you make the connection between doing difficult things and the benefits you get from doing them, and you come to look forward to doing these difficult things.

What I'm trying to say is that for the average investor, what I would encourage them to do is to understand there's inflation and growth - it can go higher and lower - and to have four different portfolios essentially that make up your total portfolio that gets you balanced.

One of the greatest sources of problems in our society arises from people having loads of wrong theories in their heads - often theories that are critical of others - that they won't test by speaking to the relevant people about them. Instead, they talk behind people's backs, which leads to pervasive misinformation.