"In my 45-year career as an investment counselor, humility did show me the need for worldwide diversification to reduce risk. That career did help me to become more and more humble because statistics showed that when I advised a client to buy one stock to replace another, about one-third of the time the client would have done better to ignore my advice. In other endeavors, humility about how little I know has encouraged me to listen more carefully and more wisely."