鳥之翼尾羽也 From Wikipedia, the free encyclopedia
發翔羽,亦曰撥風羽、風切羽,鳥之翼尾羽也,狀長實。蓋處乎翼者曰飛,在乎尾者曰舵。鳥若振翅高飛,必賴其力,方能成矣。若夫示權、求愛之時,亦有所用也。
至若飛羽之齒,靜鶚之行,大利其獵。舵羽之堅,固啄木鳥於幹,遂任啄而不墜。縱為不飛之鳥,亦有留之焉。若有所損,則殆必亡,故各有對策。有甚者,盡去其羽,置諸死地,以求須臾復生,齊整數年耳。
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