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A wise man said: before you speak， let your words pass through three gates. At the first gate， ask yourself， "Is it true？" At the second gate， ask "Is it necessary？" At the third gate， ask， "Is it kind？"

美德不在于避免惡習，而在于不渴望它。

"The 21st century is oppressed by a crushing sense of finitude and exhaustion."

The task of economics is not only to interpret phenomena, but also to provide practical advice and policies for society.