Choosing individual stocks without any idea of what you're looking for is like running through a dynamite factory with a burning match. You may live, but you're still an idiot.

It just seems logical that sticking to investing in only a small number of companies that you understand well, rather than moving down the list to your thirtieth or fiftieth favorite pick, would create a much greater potential to earn above-average investment returns.

There’s a virtuous cycle when people have to defend challenges to their ideas. Any gaps in thinking or analysis become clear pretty quickly when smart people ask good, logical questions. You can’t be a good value investor without being an independent thinker – you’re seeing valuations that the market is not appreciating. But it’s critical that you understand why the market isn’t seeing the value you do. The back and forth that goes on in the investment process helps you get at that.

We are busy surviving, herding, fixating on what just happened, and being overconfident!

So one way to create an attractive risk/reward situation is to limit downside risk severely by investing in situations that have a large margin of safety. The upside, while still difficult to quantify, will usually take care of itself. In other words, look down, not up, when making your initial investment decision. If you don’t lose money, most of the remaining alternatives are good ones.

Here is part of the tradeoff with diversification. You must be diversified enough to survive bad times or bad luck so that skill and good process can have the chance to pay off over the long term.

Something out of the ordinary course of business is taking place that creates an investment opportunity. The list of corporate events that can result in big profits for you runs the gamut—spinoffs, mergers, restructurings, rights offerings, bankruptcies, liquidations, asset sales, distributions.