The only purpose for which power can be rightfully exercised over any member of a civilized community， against his will， is to prevent harm to others.

理论洞察可以带来实际突破，弥合抽象思想与现实应用之间的差距。

La revolución es como la bicicleta, si no avanzas se cae.

我们期望的晚餐并非来自屠夫、酿酒师或面包师的恩惠，而是来自他们对自身利益的关注。