Rule No.1: Never lose money. Rule No.2: Never forget rule No.1.

Making money isn't the backbone of our guiding purpose; making money is the by-product of our guiding purpose. If you're doing something you love, you're more likely to put your all into it, and that generally equates to making money

Investing requires qualities of temperament way more than it requires qualities of intellect.

Never risk what you have and need for what we don't have and don't need.

Asset values and earning power are the dominant factors affecting the valuation of a controlling interest in a business. Market price, which governs valuation of minority interest positions, is of little or no importance in valuing a controlling interest.

The key to investing is not assessing how much an industry is going to affect society, or how much it will grow, but rather determining the competitive advantage of any given company and, above all, the durability of that advantage.

I never try to predict the market.