It takes considerable knowledge just to realize the extent of your own ignorance.

I think the most important thing in life is to love and be loved in return.

In times of uncertainty, clarity of purpose becomes even more critical.

When you read,don't just consider what the author thinks,consider what you think.

释义：做事要有合理的理论依据，这样有利于成就大事。自古以来，征战与讨伐必须师出有名。

道家的自然观不仅是一个物理概念，更是一个形而上的概念。