贤者处世，与时迁移。
【释义】贤能的人处世，会根据时代的变化而调整自己的行为。
Success is stumbling from failure to failure with no loss of enthusiasm.
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.