Price is what you pay. Value is what you get. - Warren Buffett

Why even smart people get bad results by Warren Buffett
It' ego, greed, envy, fear…It's mindless imitation of other people. I mean, there are a variety of factors that cause that horsepower of the mind to get diminished dramatically before the output turns out. And I would say if Charlie and I have any advantage it's not because we're so smart, it's because we're rational and we very seldom let extraneous factors interfere with our thoughts. We don't let other people's opinion interfere with it…we try to get fearful when others are greedy. We try to get greedy when others are fearful. We try to avoid any kind of imitation of other people's behavior. And those are the factors that cause smart people to get average to bad results.

I always look at IQ and talent as representing the horsepower of the motor, but in terms of output, the efficiency with which the motor works, depends on rationality. That's because a lot of people start out with 400-horsepower motor and get a hundred horsepower of output. So why do smart people do things that interfere with getting the output they're entitled to? It gets into the habits, and character and temperament, and it really gets into behaving in a rational manner. Not getting in your own way.

Just because Charlie and I can clearly see dramatic growth ahead for an industry does not mean we can judge what its profit margins and returns on capital will be as a host of competitors battle for supremacy. At Berkshire we will stick with businesses whose profit picture for decades to come seems reasonably predictable. Even then, we will make plenty of mistakes.

our experience with newly-minted MBAs has not been that great. Their academic records always look terrific and the candidates always know just what to say; but too often they are short on personal commitment to the company and general business savvy. It’s difficult to teach a new dog old tricks.