Livermore on knowing yourself

It is my conclusion that playing the market is partly an art form, it is not just pure reason. If it were pure reason, then somebody would have figured it out long ago. That’s why I believe every speculator must analyze his own emotions to find out just what stress level he can endure. Every speculator is different, every human psyche is unique, every personality exclusive to an individual. Learn your own emotional limits before attempting to speculate, that is my advice to any one who has ever asked me what makes a successful speculator. If you can’t sleep at night, because of your stock market position than you have gone too far, if this is the case then sell your position down to the sleeping level.

On the other hand, I believe everyone who is intelligent, conscientious and willing to put in the necessary time, can be successful on Wall Street. As long as they realize the market is a business like any other business – they have a good chance to prosper.