Use the formula P=40 to 70, in which P stands for the probability of success and the numbers indicate the percentage of information acquired. Once the information is in the 40 to 70 range, go with your gut.
Colin PowellPoverty arises and persists where corruption is endemic and enterprise is stifled, where basic fairness provided by the rule of law is absent. In such circumstances, poverty is an assault against human dignity, and in that assault lies the natural seed of human anger
Colin Powell