[Gold] gets dug out of the ground in Africa, or someplace. Then we melt it down, dig another hole, bury it again and pay people to stand around guarding it. It has no utility. Anyone watching from Mars would be scratching their head.

Do what you love and work for whom you admire the most, and you've given yourself the best chance in life you can.

Does the business have a consistent operating history?

None of this means, however, that a business or stock is an intelligent purchase simply because it is unpopular; a contrarian approach is just as foolish as a follow-the-crowd strategy. What's required is thinking rather than polling. Unfortunately, Bertrand Russell's observation about life in general applies with unusual force in the financial world: "Most men would rather die than think. Many do."

You really don't need leverage in this world much. If you're smart, you're going to make a lot of money without borrowing. I've never borrowed a significant amount of money in my life. Never. Never will. I've got no interest in it.

The ideal business is one that earns very high returns on capital and that keeps using lots of capital at those high returns. That becomes a compounding machine.

Be brave when others are afraid, and afraid when others are brave.