闹里有钱，静处安身。
闹市是赚钱的地方，安静的地方才能休养身体。
True happiness arises, in the first place, from the enjoyment of one's self, and in the next, from the friendship and conversation of a few select companions.
Every mathematical problem is a puzzle waiting to be solved, and every solution is a step towards greater understanding.
Stay hungry, stay foolish, but always stay true to yourself.
最好的解决方案往往来自那些最接近问题的人——我们的农民。