我们最好的投资是员工的技能和安全。
The best investments we make are in the skills and safety of our workforce.
我不是商人,我就是生意本身。
Literature is a weapon against forgetting.
学习计量经济学的最佳方法是通过实践——处理真实的数据和真实的问题。
Sometimes when you innovate, you make mistakes. It is best to admit them quickly, and get on with improving your other innovations.