Per Erik Løff

“To learn that a man can make foolish plays for no reason whatever was a valuable lesson. It cost me millions to learn that another dangerous enemy to a trader is his susceptibility to the urgings of a magnetic personality when plausibly expressed by a brilliant mind. It has always seemed to me, however, that I might have learned my lesson quite as well if the cost had been only one million. But Fate does not always let you fix the tuition fee. She delivers the educational wallop and presents her own bill, knowing you have to pay it, no matter what the amount may be.”
― Jesse Livermore, Reminiscences of a Stock Operator