比培训员工后失去他们更糟糕的是不培训他们而留住他们。
The only thing worse than training employees and losing them is not training them and keeping them.
Virtue consists， not in abstaining from vice， but in not desiring it.
我们需要对非人类发展出一种新的敏感性。
追求知识是一段永无止境的旅程，每一个发现都为新的问题打开了大门。