An idiot with a plan can beat a genius without a plan. - Warren Buffett

At Berkshire, managers can focus on running their businesses: They are not subjected to meetings at headquarters nor financing worries nor Wall Street harassment. They simply get a letter from me every two years (reproduced at the end of this letter) and call me when they wish. And their wishes do differ: There are managers to whom I have not talked in the last year, while there is one with whom I talk almost daily. Our trust is in people rather than process. A “hire well, manage little” code suits both them and me.

For 240 years, it's been a terrible mistake to bet against America.

The most common cause of low prices is pessimism — some times pervasive, some times specific to a company or industry. We want to do business in such an environment, not because we like pessimism but because we like the prices it produces. It's optimism that is the enemy of the rational buyer.