Our performance, relatively, is likely to be better in a bear market than in a bull market ... in a year when the general market had a substantial ad… - Warren Buffett

Tom [Knapp] was a chemistry major at Princeton before the war; when he came back... he was a beach bum. And then one day he read that Dave Dodd was giving a night course in investments at Columbia. Tom took it on a non-credit basis, and he got so interested... that he enrolled at Columbia Business School where he got the MBA... He took Dodd's course again, and took Ben Graham's course. ...35 years later ...I found him on the beach ...he owns the beach!

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.

People will always try to stop you doing the right thing if it is unconventional.