译文：纵览历史，凡是贤明的国和家，成功源于勤俭，衰败起于奢华。赏析：节俭不是吝啬，是对钱财的合理利用。不管何时，我们都要有忧患意识，保持俭朴的作风。

The most rewarding part of science is seeing your work help others.

I believe in the power of love and music to heal.

The past is a cupboard full of light and all you have to do is find the key that opens the door.

生命是脆弱的，没人能保证明天，所以请全力以赴。

我不是一个回头看的人，我总是向前看。

人的命运在他的灵魂中。