禁欲主义原则从来没有被任何生物一贯坚持过，也永远不会被如此坚持。

The advantages found in history seem to be of three kinds， as they result either from the mere situation of the climate and country or from the form of government and of the character of the people， or from those finer principles and morals， which may be called the recommendations of philosophy.

True leadership is about making tough decisions today that will benefit future generations.

房子应该是家庭的殿堂。

雄心壮志是失败最后的避难所。

记忆是一件复杂的事情，是真理的亲戚，但不是它的双胞胎。

真正的智能是理解，而不仅仅是计算。