乌鸟之狡，虽善不亲。不重之结，虽固必解
解释：乌鸦聚集在一起，虽然看上去很和好，实际上并不亲密；不慎重地结交朋友，虽似牢固，终必破裂。
Psychology is a science, and teaching is an art; and sciences never generate arts directly out of themselves.
有些选择返回乡村的人，当地人十分欢迎他们回乡。因为他们在城市获得了知识，技术，和人际关系，通过互联网的帮助，他们可以创造更多工作，在发展较落后的地区将农业升级并创造更多商机。
Liberty means responsibility. That is why most men dread it.
真相很少是纯粹的，也从不简单。
"The colony is the place where the project of a new humanity is to be tested, where the dream of a world without borders is to be realized, where the dream of a world without races is to be realized, where the dream of a world without nations is to be realized, where the dream of a world without classes is to be realized, where the dream of a world without genders is to be realized, where the dream of a world without religions is to be realized, where the dream of a world without money is to be realized, where the dream of a world without property is to be realized."
The robustness of topological states against local perturbations is a testament to the power of topology in protecting quantum information.