自然的法则是无情的。
The laws of nature are unforgiving.
It's not always necessary to be better than everyone else, but to be better than you used to be.
对任何模型的最大期望是它能提供一个对现实有用的近似。
茍活比牺牲需要更多的勇气。
解释：脚力不强劲，行程就不会远；刀刃不锋利，割东西就不会深。
脆弱不是软弱，而是彻底的诚实。
我们学得越多，就越意识到自己的无知。
The discovery of topological insulators has opened up a new frontier in condensed matter physics, where the interplay between topology and symmetry leads to novel quantum states of matter.