Efficiency without sustainability is just a short-term win; true progress is measured in long-term impact.

If a lion could talk, we could not understand him.

举一个例子尚且不明白,就不要追求见多识广。

有时候我真想放弃，但想到会让很多人失望，我就坚持下来。

I’m a great believer in solving hard problems by using a checklist. You need to get all the likely and unlikely answers before you; otherwise it’s easy to miss something important.

我不害怕冒险，也不害怕失败。