You can't buy what is popular and do well.

Beware [of] the investment activity that produces applause; the great moves are usually greeted by yawns.

Diversification is protection against ignorance. It makes little sense if you know what you are doing.

An argument is made that there are just too many question marks about the near future; wouldn't it be better to wait until things clear up a bit? You know the prose: "Maintain buying reserves until current uncertainties are resolved," etc. Before reaching for that crutch, face up to two unpleasant facts: The future is never clear and you pay a very high price for a cheery consensus. Uncertainty actually is the friend of the buyer of long-term values.

Investment students need only two well-taught courses - How to Value a Business and How to Think About Market Prices

I won't close down a business of subnormal profitability merely to add a fraction of a point to our corporate returns. I also feel it inappropriate for even an exceptionally profitable company to fund an operation once it appears to have unending losses in prospect. Adam Smith would disagree with my first proposition and Karl Marx would disagree with my second; the middle ground is the only position that leaves me comfortable.

If you do smart things and use leverage and do one wrong thing along the way, it could wipe you out, because anything times zero is zero. But it's reinforcing when the people around you are doing it successfully, you're doing it successfully, and it's a lot like Cinderella at the ball.