Topology is the study of the properties of a figure that are unchanged by any deformation.
Politics has no permanent friends or enemies, only interests.
A well-designed market minimizes the opportunities for strategic manipulation.
你的时间无法弯曲是因为我。
文章的最高境界,能够通达神明,穷尽天地之理,放之四海而皆准,流传百世而不衰。