If I subscribed to the efficient market theory I would still be delivering papers

If you aren't willing to own a stock for ten years, don't even think about owning it for ten minutes. Put together a portfolio of companies whose aggregate earnings march upward over the years, and so also will the portfolio's market value.

Basically, the single-most important decision in evaluating a business is pricing power.

The most important investment you can make is in yourself. Very few people get anything like their potential horsepower translated into the actual horsepower of their output in life. Potential exceeds realization for many people...The best asset is your own self. You can become to an enormous degree the person you want to be.

To invest successfully, you need not understand beta, efficient markets, modern portfolio theory, option pricing or emerging markets. You may, in fact, be better off knowing nothing of these. That, of course, is not the prevailing view at most business schools, whose finance curriculum tends to be dominated by such subjects. In our view, though, investment students need only two well-taught courses - How to Value a Business, and How to Think About Market Prices.

It’s not that I want money. It’s the fun of making money and watching it grow.

All I have to do is think and not be influenced by others.