There are some beauties. I'll start of with a few.
At the start of a bear market, nobody knows it is a bear market - they just think it is a correction.
Statistics are like bikinis. What they reveal is suggestive, but what they conceal is vital.
In the autumn of 1929 the mightiest of Americans were, for a brief time, revealed as human beings. Like most humans, most of the time, they did some very foolish things. On the whole, the greater the earlier reputation for omniscience, the more serene the previous idiocy, the greater the foolishness now exposed.
John k Galbraith
When good news about the market hits the front page of the New York Times, sell.