People will always try to stop you from doing the right thing if it is unconventional.

It is easier to rationalize than it is to be rational.

Rule No.1: Never lose money. Rule No.2: Never forget rule No.1.

Intensity is the price of excellence.

Stocks of companies selling commodity-like products should come with a warning label: "Competition may prove hazardous to human wealth".

That would be nice if [people] stuck [treasury bills] all under a mattress, but they got to buy something with them. Sometimes they buy a treasury note, sometimes they set up sovereign wealth funds. They can do all kinds of things. They can buy our companies here. As long as we consume more than we produce, and we trade away little pieces of the country daily, they're going to own something. Now, they can't run from American assets. I mean every day the rest of the world is going to have about two billion more of American assets than we have, as long as they sell us these goods.

We really can say no in 10 seconds or so to 90%+ of all the things that come along simply because we have these filters.