野芜旷，则民乃菅，上无量，则民乃妄。
田野荒芜废弃，人民也将由此而惰怠；君主挥霍无度，则人民胡作妄为。
I don't know where the limits are, but I would like to go there.
The true test of a mathematical idea is its ability to inspire further thought.
你越是试图忘记，越是记得清楚。
The best way to predict the future is to create it.
教育是连接传统实践与现代可持续性的桥梁。