唯一的真正幸福来自于为一个目标挥霍自己。
微子:商纣王的庶兄。箕子:商纣王的诸父,曾数次谏纣王,王不听把他囚禁。【大意】扁鹊不能使枯骨上长出肉来,微子和箕子不能使将亡之国得以生存下去。
The most exciting moments in mathematics are when you discover that two seemingly unrelated areas are deeply connected.
有用是这些老人曾经对自己最好的希望,而无目的是他们最深的恐惧。