You must force yourself to consider opposing arguments. Especially when they challenge your best loved ideas.

Over many decades, our usual practice is that if something we like goes down, we buy more and more. Sometimes something happens, you realize you’re wrong, and you get out. But if you develop correct confidence in your judgment, buy more and take advantage of stock prices.

The SEC does way more good than harm - the last thing I would do is get rid of the SEC...if accounting were thoroughly fixed, a lot of other sins would go away. We're paying a huge price for deterioration of accounting.

It's not the bad ideas that do you in, but the good ones.

Even if you assume that the whole economy would work better had we never had double taxation, having the envy and resentment of the richest paying low or no taxes screams of injustice. You have to have a fair system.

You don't have to have perfect wisdom to get very rich - just a bit better than average over a long period of time.

Part of that, I think, is being able to tune out folly, as distinguished from recognizing wisdom. You've got whole categories of things you just bat away so your brain isn't cluttered with them. That way, you're better able to pick up a few sensible things to do.