史记

时节不寒冷，就不会知道松柏挺拔且郁郁葱葱的；事情不危难，就不会知道君子每日都在持守信念。

I'm a failed poet. Maybe every novelist wants to write poetry first, finds he can't, and then tries the short story, which is the most demanding form after poetry. And, failing at that, only then does he take up novel writing.

思维在于设想、实现结构特征和结构要求。