Only buy something that you'd be perfectly happy to hold if the market shut down for 10 years.
Investment must be rational; if you can't understand it, don't do it.
What the wise do in the beginning, fools do in the end.
It is not necessary to do extraordinary things to get extraordinary results.
The fundamental basis of above-average performance in the long run is sustainable competitive advantage.
If you have a harem of 40 women, you never get to know any of them very well.