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Speculation is a hard and trying business, and a speculator must be on the job all the time, or he'll soon have no job to be on.

( Jesse Livermore )

I never hesitate to tell a man that I am bullish or bearish. But I do not tell people to buy or sell any particular stock.

( Jesse Livermore )

Letting losses run is the most serious mistake made by most investors.

( William O'Neil )

To be uncertain is to be uncomfortable, but to be certain is to be ridiculous.

( Proverb )

No profession requires more hard work, intelligence, patience, and mental discipline than successful speculation.

( Robert Rhea )

A bull market is like sex. It feels best just before it ends.

( Barton Biggs )

Large price changes tend to be followed by more large changes, positive or negative. Small changes tend to be followed by more small changes. Volatility clusters.

( Benoit B. Mandlebrot )