【译文】我每天多次省察我自己:为别人做事有没有尽力,和朋友交往有没有不真诚,教别人的东西自己有没有研习好。
纯粹自然状态的条件...是每个人对每个人的战争状态。
艺术的真正用途是让不可见的东西变得可见。
Freedom does not consist in any dreamt-of independence from natural laws, but in the knowledge of these laws, and in the possibility this gives of systematically making them work towards definite ends.