The more confidence I have in each one of my stock picks, the fewer companies I need to own in my portfolio to feel comfortable.

Over the long term, despite significant drops from time to time, stocks (especially an intelligently selected stock portfolio) will be one of your best investment options. The trick is to GET to the long term. Think in terms of 5 years, 10 years and longer. Do your planning and asset allocation ahead of time. Choose a portion of your assets to invest in the stock market - and stick with it! Yes, the bad times will come, but over the truly long term, the good times will win out - and I hope the lessons from 2008 will help get you there to enjoy them.

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.

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.

The big picture is: the main thing you should be concerned about in the future are incremental returns on capital going forward. As it turns out, past history of a good return on capital is a good proxy for this but obviously not foolproof. I think this is an area where thoughtful analysis can add value to any simple ranking/screening strategy such as the magic formula. When doing in depth analysis of companies, I care very much about long term earnings power, not necessarily so much about the volatility of that earnings power but about my certainty of "normal" earnings power over time.

Remember, it’s the quality of your ideas not the quantity that will result in the big money.

I think the exercise of trying to figure out how to simplify concepts has been incredibly helpful to me over the last 13 years of teaching and I hope my students have benefited from it.