一个美洲的战士，从这里出发了！
格瓦拉第二次漫游南美前对母亲说
你看到事物时会问“为什么？”而我梦想从未有过的事物时会问“为什么不呢？”
最大的风险是不冒任何风险。
Concerning the gods, I have no means of knowing whether they exist or not or of what sort they may be. Many things prevent knowledge including the obscurity of the subject and the brevity of human life.
A good mathematician is lazy, but in a constructive way.