The personal attitude of the plunger is likely to be one of daring. He risks so much of his capital on a single trade that he is also likely to risk much more in his judgment and analysis. He is likely to be abrupt, dogmatic and prejudiced in his analysis, if not actually slipshod in his methods. The very traits which lead him to risk such capital lead him also to substitute risk for knowledge, chance for study and a thorough weighing of the situation. And the results are much more apt to be disastrous on that account.

– Richard Schabacker, Stock Market Profits