Psychology is the science of mental life in its adaptive relations.

The best leaders are those who listen more than they speak.《Leadership in the Modern Age》

Never use a credit card for credit. The only kind of credit， or debt， that is acceptable is debt to acquire something whose exchange value is extremely likely to increase， like in a home. The exchange value of most things diminishes or vanishes the moment you purchase them. Don’t be in debt to losers.

I don't listen to what people say. I just go out there and perform.