Capitalism is all about somebody coming and trying to take the castle. Now what you need is .... you need a castle that has some durable competitive … - Warren Buffett

Buy a stock the way you would buy a house. Understand and like it such that you’d be content to own it in the absence of any market.

As practiced, diversification makes very little sense for anyone that knows what they’re doing. Diversification is a protection against ignorance. If you want to make sure nothing bad happens to you relative to the market, sure you should diversify. There's nothing necessarily wrong with that...but in our view, true diversification is simply a confession that you do not truly understand the businesses that you own. If you find just 3 wonderful businesses in your lifetime, you'll get very rich.

The bedrock challenge for directors, nevertheless, remains constant: Find and retain a talented CEO — possessing integrity, for sure — who will be devoted to the company for his/her business lifetime. Often, that task is hard. When directors get it right, though, they need to do little else. But when they mess it up, . . . . . .