... but the important thing is that when you do find one where you really do know what you are doing, you must buy in quantity.... Charlie and I have made a dozen or so very big decisions relative to net worth, although not as big as they should have been. And in each of those, we've known that we were almost certain to be right going in.

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, when making a stock investment, you're not considering holding it at least ten years, don't waste more than ten minutes considering it.

If you buy things you do not need, soon you will have to sell things you need.

Someone is sitting in the shade today because someone planted a tree a long time ago.

If the world couldn't see your results, would you rather be thought of as the world's greatest investor but in reality have the world's worst record? Or be thought of as the world's worst investor when you were actually the best?

The plan itself is opportunism. There is no plan before that.