It takes 20 years to build a reputation and five minutes to ruin it. If you think about that, you'll do things differently.

No formula in finance tells you that the moat is 28 feet wide and 16 feet deep. That's what drives the academics crazy. They can compute standard deviations and betas, but they can't understand moats.

I make no effort to predict the course of general business or the stock market. Period. However, currently there are practices snowballing in the security markets and business world which, while devoid of short term predictive value, bother me as to possible long term consequences.

A prediction about the direction of the stock market tells you nothing about where stocks are headed, but a whole lot about the person doing the predicting.

Having first rate people on the team is more important than designing hierarchies and clarifying who reports to whom.

There's always a mismatch. I mean, you know, as the economy evolves, it reallocates resources. Now, the real problem, in my view, is - this has been - the prosperity has been unbelievable for the extremely rich people. If you go to 1982, when Forbes put on their first 400 list, those people had $93 billion. They now they have $2.4 trillion, 25 for one. That is - this has been a prosperity that's been disproportionately rewarding to the people on top.

Investors, of course, can, by their own behavior make stock ownership highly risky. And many do. Active trading, attempts to "time" market movements, inadequate diversification, the payment of high and unnecessary fees to managers and advisors, and the use of borrowed money can destroy the decent returns that a life-long owner of equities would otherwise enjoy. Indeed, borrowed money has no place in the investor's tool kit.