后生可畏，焉知来者之不如今也？
出自《论语·子罕》。年轻人是值得敬畏的啊，你怎么知道他之后不如当今的你呢？
我们称可见光为什么？我们称之为颜色。但颜色只是我们给光碰到某物时的行为方式起的名字。
The more we learn about our past, the better we understand our present.
I've learned that you can't control everything in life, and that's okay.
"The world is changed by your example, not by your opinion."
The beauty of mathematics is that it is so simple yet so powerful.
"The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart."