Pain is the absence of pleasure, pleasure is the absence of pain.
Good can exist without evil, whereas evil cannot exist without good.
外交不仅仅是国家之间的事务,它也关乎人类整体的命运和未来。
"Sometimes you have to surrender before you win."
The pursuit of mathematical knowledge is a journey that never ends.
The writer must be a person who is willing to take risks.
写作就是踏上一段进入未知的旅程,每一个词都是踏入未知领域的一步。
The greatest art is noisy with ideas.