Wise men, when in doubt whether to speak or to keep quiet, give themselves the benefit of the doubt, and remain silent.

Maxwell's A Lifetime "Must Read" Books List. He later used his earnings as a reporter to enter law school but soon he had to withdraw for financial reasons. Impressed with Hill Carnegie asked him if he was up to the task of putting together this information to interview or analyze over 500 successful men and women many of them millionaires in order to discover and publish this formula for success.

How achievement actually occurs and a formula for it that puts success in reach of the average person were the focal points of Hill's books. Roosevelt from 1933 to 1936.