Trading is so exciting that it often makes amateurs feel high. A trade for them is like a ticket to a movie or a professional ballgame. Trading is a much more expensive entertainment than the cinema.
Nobody can get high and make money at the same time. Emotional trading is the enemy of success. Greed and fear are bound to destroy a trader. You need to use your intellect instead of trading on gut feeling.
A trader who gets giddy from profits is like a lawyer who starts counting cash in the middle of a trial. A trader who gets upset at losses is like a surgeon who faints at the sight of blood. A real professional does not get too excited about wins or losses.
The goal of a successful professional in any field is to reach his personal best — to become the best doctor, the best lawyer, or the best trader. Money flows to them almost as an afterthought. You need to concentrate on trading right —and not on the money. Each trade has to be handled like a surgical procedure —seriously, soberly, without sloppiness or shortcuts.
– Alexander Elder, Trading for a Living