科学的挑战不仅在于找到答案，还要理解其更深层次的含义。

You have to be willing to sacrifice to get what you want or what you need.

真正的挑战不是生产更多粮食，而是用更少的浪费更聪明地种植。

"The world is full of signs, but we are often too blind to see them."

"History is not just about events, but about the people who lived through them."

The bitterest creature under heaven is the wife who discovers that her husband's bravery is only bravado.