You must take personal responsibility. You cannot change the circumstances, the seasons, or the wind, but you can change yourself. That is something you have charge of.

要明智地管理森林，必须首先学会像森林一样思考。

数学的真正乐趣在于发现的过程，而不仅仅是结果。

最可持续的产品是经久耐用的产品。

The analogical city is a city that resembles another city.