We cannot be sure of having something to live for unless we are willing to die for it.
Entanglement is not just a curious feature of quantum mechanics - it is the essential feature.
I don't rap for dead presidents. I'd rather see the president dead.
The pursuit of mathematical knowledge is a journey that never ends.
监狱里的高墙实在是很有趣。刚入狱的时候,你痛恨周围的高墙;慢慢地,你习惯了生活在其中;最终你会发现自己不得不依靠它而生存。这就是体制化。