数学的快乐来自于为理解而奋斗。

永远不要让其他人定义你的价值。只有你能决定自己的价值。

追求幸福不是追逐快乐，而是培养意义。

In mathematics, the art of proposing a question must be held of higher value than solving it.

Every animal deserves humane treatment—it’s not just ethical, it’s good business.

去建立关系并珍惜，比起厌恶与破坏本就困难许多。