“Chumps prefer a beautiful lie to an ugly truth. The sucker wants to believe certain things about life and so projects these wishes on to the real world, seeing what he wants to see, not what is. A hustler thrives on reality, ugly or unpleasant — finds his poetry in the real. He sees the whole table and plays it as it lays.”
Robert Greene, author of The 48 Laws of Power, uses shooting billiards as a metaphor to explain how to see all the angles and improve your thinking.
His advice includes to not get upset by the unknown, to understand money is a tool for power, and to remember emotion trumps strategy.