拓扑绝缘体的美在于它们的鲁棒性；它们的表面态受到对称性和拓扑的保护，使它们对某些类型的无序免疫。
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.
所以富贵的人极其奢侈,二孤儿寡妇却受饥挨饿,虽然想天下不乱,也不可能。国君若真的希望天下太平而不希望天下大乱的话,如果要吃喝,就不能不节俭。
你将学到的最伟大的事情就是去爱并被爱回报。
"When you have a dream, you've got to grab it and never let go."
人类的选择在于自由和幸福之间，而对于大多数人来说，幸福更好。
I'm a work in progress. I'm not perfect, but I'm trying every day.