The only truly secure system is one that is powered off, cast in a block of concrete and sealed in a lead-lined room with armed guards - and even then I have my doubts.
The unity of mathematics is not an illusion but a reality waiting to be uncovered.
死亡的念头会把我们推向对我们而言最重要的事情,这种念头会赋予我们勇气,促使我们追求内心所重视的生活方式。《机场里的小旅行》
【译文】要像瓶口那样不轻易开口,要像城防那样时时戒备。宁愿让别人辜负我,决不让自己辜负别人。做事要三思而后行,首先不要违背自己的良心。活着的老虎尚可以靠近,心地恶毒的人千万不能亲近。在你跟前说别人坏话的人,就是制造是非的小人。
我是个战士,我永不放弃。