You can obsess about serving your customers/audience/clients， or you can obsess about beating the competition. Both work， but of the two， obsessing about your customers will take you further.
始终保持交易的书面记录。这将帮助你从错误和成功中学习。
最好的领导者是那些激励他人做到最好的人。
The biggest risk is not taking any risk.
还有什么地牢比自己的心更黑暗！还有什么狱卒比自己更无情！
You can’t let success get to your head and failure to your heart.