The past is a great source of learning, but it is also a great source of error.
过去是学习的重要来源,但也是错误的重要来源。
The best performance improvement is the transition from the nonworking state to the working state.
在经济学中,魔鬼往往藏在细节里。
商业成功源于比任何人都更了解你的客户。