自然权利...是每个人都有权利按照自己的意愿使用他自己的力量来维护自己的本性。
The right of nature...is the liberty each man hath to use his own power as he will himself for the preservation of his own nature.
广义相对论已经通过了我们所有的测试，甚至在超大质量黑洞附近也是如此。
想治理国家，首先要先去治民。治民要先正己，做好治家的工作，把自家子弟教育好了，自己就会以身作则；只有做到先正自己，才能在治民方面起到带头作用。只有先做好自己，才能为别人带好头和榜样；只有先身体力行才能有好作用榜样示范作用。这才是真正有意义的治理国家的好方法。只有先立好自己的身才能对社会起到好的表率作用。
Everything is connected, everything.
The beauty of topological insulators lies in their robustness; their surface states are protected by symmetry and topology, making them immune to certain types of disorder.