"One of the best rules anybody can learn about investing is to do nothing, absolutely nothing, unless there is something to do. Most people always have to be playing; they always have to be doing something. They make a big play and say, "Boy, I am smart, I just tripled my money." Then they rush out and have to do something else with that money. They just can`t just sit there and wait for something new to develop."
in Market Wizards