If you buy something because it's undervalued, then you have to think about selling it when it approaches your calculation of its intrinsic value. That's hard. But if you buy a few great companies, then you can sit on your ass. That's a good thing.

Part of [having uncommon sense] is being able to tune out folly, as opposed to recognizing wisdom. If you bat away many things, you don't clutter yourself.

I try to get rid of people who always confidently answer questions about which they don't have any real knowledge.

I think I've been in the top 5% of my age cohort all my life in understanding the power of incentives, and all my life I've underestimated it.

If (investing) weren't a little difficult, everybody would be rich.

Move only when you have an advantage. It's very basic. You have to understand the odds and have the discipline to bet only when the odds are in your favor.

What's the best way to get a good spouse? The best single way is to deserve a good spouse because a good spouse is by definition not nuts.