因此，国家并非自古以来就存在。曾经有一些社会没有国家，对国家或国家权力毫无概念。在一定的经济发展阶段，这必然与社会分裂成阶级有关，国家变成了一种必要性。
The state, therefore, has not existed from all eternity. There have been societies that did without it, that had no notion of the state or state power. At a certain stage of economic development, which was necessarily bound up with the split of society into classes, the state became a necessity.
The patient’s voice should guide every step of drug development.
未来属于那些能够在创新与诚信之间取得平衡的人。
Quality is not an act, it is a habit.
遗传密码是一种语言，它讲述了生命的基本过程。
没有最好，只有更好。人才的分配是不公平的，但我们改善自己的道路是没有终点的。
