The ladder of success is best climbed by stepping on the rungs of opportunity.

Purposive behavior in animals and men.

科学的精确性既需要严谨，也需要创造力。

安全必须始终优先于生产目标。

I believe that the most important single thing, beyond discipline and creativity, is daring to dare.

I don't compete with anyone but myself.

我无法改变我的出身或我经历的一切，所以我为什么要为造就我的事情感到羞耻？