Its existence is due to its peculiar traits, among which the most important ones are particular autorhythmicity, self coerciveness, universal penetrability and lofty ideality.

道德力主要特质有:独特自律、自我强制、普遍渗崇高理想。

Through the descriptions of the swallow,TU Fu presented his intrapersonal changes and experiences during the course of pursuing his individual political ideality and moral ideality.

杜甫在诗歌中对燕子吟诵,勾画出了他在个人政治理想追求士人道德理想追求过程中内心变化心路历程。