The true genius shudders at incompleteness — and usually prefers silence to saying something which is not everything it ought to be.
真正的天才在不完整面前会颤抖——通常宁愿保持沉默，也不愿说一些不完全符合它应该说的话。
译文：不能让智巧劳烦打扰我们的心境，不能让私利拖累我们的自身；把国家的治乱寄托在法术上，把是非的判断寄托在赏罚上。
You should be doing something that you're passionate about and that you think is really important.
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.
机械和节省劳力的装置只有在降低制造成本时才具有价值。