【译文】 孔子说：“知道学习不如喜欢学习，喜欢学习不如以学习为快乐。”

We must focus on customers and continuously improve the quality of products and services.

Liberal democracy may constitute the "end point of mankind's ideological evolution" and the "final form of human government," and as such constituted the "end of history."

The older one grows, the more one likes indecency.

译文：武德与法度并重，文教在中兴时期熠熠生辉。