The pursuit of knowledge is a lifelong journey, and the joy of discovery is its greatest reward.

"The only thing that is truly boundless is the human spirit."

That “democracy” is a somewhat vague term which I cannot define precisely. We ought to say, therefore: “I am fairly certain that it is a good thing if a government has something of the characteristics that are common to the British and American Constitutions,” or something of this sort.

圣人不期望完全效法古代，不墨守一成不变的旧规。

词语有重量，而故事有引力。

Your most unhappy customers are your greatest source of learning.