不要
Don’t take it personally when someone turns you down. Assume they are like you: busy, occupied, distracted. Try again later. It’s amazing how often a second try works.
Don’t be the smartest person in the room. Hangout with, and learn from, people smarter than yourself. Even better, find smart people who will disagree with you.
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.
Don’t be afraid to ask a question that may sound stupid because 99% of the time everyone else is thinking of the same question and is too embarrassed to ask it.