Three rules for a career: 1) Don’t sell anything you wouldn’t buy yourself; 2) Don’t work for anyone you don’t respect and admire; and 3) Work only with people you enjoy.

Warren is one of the best learning machines on this earth. The turtles who outrun the hares are learning machines. If you stop learning in this world, the world rushes right by you.

An investment decision in the common stock of a company frequently involves a whole lot of factors interacting ... the one thing that causes the most trouble is when you combine a bunch of these together, you get this lollapalooza effect.

You have to realize the truth of biologist Julian Huxley's idea that 'Life is just one damn relatedness after another' "So you must have the models, and you must see the relatedness and the effects from the relatedness.

I have what I call an iron prescription that helps me keep sane when I naturally drift toward preferring one ideology over another and that is: I say that I'm not entitled to have an opinion on this subject unless I can state the arguments against my position better than the people who support it. I think only when I've reached that state am I qualified to speak. This business of not drifting into extreme ideology is a very, very important thing in life

The Internet bubble circa 2000 is the most extreme in modern capitalism. In the 1930s, we had the worst depression in 600 years. Today is almost as extreme in the opposite way.

Obviously if you want to get good at something which is competitive, you have to think about it and practice a lot. You have to keep learning because world keeps changing and competitors keep learning. You have to go to bed wiser than you got up. As you try to master what you are trying to do – people who do that almost never fail utterly. Very few have ever failed with that approach. You may rise slowly, but you are sure to rise.