科学不仅仅是关于事实，更是关于提出正确的问题。

有时最艰难的战斗发生在我们内心的沉默中。

Courtesy costs nothing. Lower the toilet seat after use. Let the people in the elevator exit before you enter. Return shopping carts to their designated areas. When you borrow something， return it better shape (filled up， cleaned) than when you got it.

一个国家的真正财富不仅在于其土地，还在于其水域。

Each of us is the weaver of our own destiny, though sometimes we cannot choose the threads in our hands.

如果我们挑选出人类中最聪明、最有想象力、最精力充沛且情绪最稳定的三分之一，所有种族都会在其中有所体现。

我不是商人。我是设计师和工程师。