When you borrow a man's car, always return it with a tank of gas.
The idea of excessive diversification is madness.
I think gold is a great thing to sew onto your garments if you're a Jewish family in Vienna in 1939, but civilized people don't buy gold, they invest in productive businesses.
Being rational is a moral Imperative. You should never be stupider than you need to be.
Opportunity comes to the prepared mind.
People always underestimate the ability of earth to increase its carrying capacity.