The creative act is not pure. History evidences it. Ideology demands it. Society exacts it. The artist loses his freedom the moment he creates a work of art.

生命的历史由突变书写。

解释：酸味食物走筋脉，但过量食用会导致小便不畅，说明饮食需适量。

如果你收养了一只饥饿可怜的狗，并且让它舒适顺利，它将不会咬你，这便是一个人与一只狗之间最主要的差别。