The only person you should try to be better than is the person you were yesterday.

在数学领域，每个问题都是发现新事物的机会。

"The only real prison is fear, and the only real freedom is freedom from fear."

我唱的每一首歌都是我献给世界的一片真心。

When we put God first, all other things fall into their proper place or drop out of our lives.

海洋是生命的摇篮，也是人类未来的希望，我们要像对待母亲一样呵护她。