事物的变化是其本质特征，适应变化是智慧。
记忆是一件复杂的事情，是真相的亲戚，但不是它的双胞胎。
Don’t loan money to a friend unless you are ready to make it a gift.
The key to security is not to trust anyone, including yourself.
效率和环境责任可以而且必须齐头并进。