不涉理路，不落言筌

诗歌创作不应依赖逻辑说理，也不应受语言形式的束缚。筌是竹制的一种捕鱼器，比喻束缚、拘碍，“言筌”即语言文字的束缚。这是宋代严羽在《沧浪诗话》中提出的有关诗歌学习及创作的要求。这一术语相当于对“妙悟”的解释，诗歌有独特的思维方式和审美要求，它的本质是吟咏情性，注重当下的感受，而不是阐发义理、卖弄学问。学习诗歌，也要避免受到论理和语言文字的束缚。

Dispense with Theory and Logic, Take Care Not to Fall into Traps of Language

Poets should not concern themselves with theory, logic or any other convention in the use of language. Quan , originally a bamboo fish-catching device, later was used as a metaphor for any form of linguistic constraint on poetic creation. The term "language trap" was first put forward by the Song Dynasty poetry theorist Yan Yu in his Canglang's Criticism on Poetry, a work on poetry learning and creation. It can be likened to the idea of "subtle insight". Poetry writing has its distinct ways of thinking and aesthetic requirements. Essentially, it should express the poet's emotions and mood, and emphasize momentary feeling, rather than expound on theories or show off one's learning. Poetry learners should also avoid being shackled by theories or conventions in language use.

引例荃者所以在鱼，得鱼而忘荃。蹄者所以在兔，得兔而忘蹄。言者所以在意，得意而忘言。（《庄子·外物》）（竹筌是用来捕鱼的，得到鱼就忘记了筌。兔网是用来捉兔子的，得到兔子就忘记了网。语言是用来表达意义的，得到意义就不再执着于语言。）

The bamboo fish trap is used to catch fish, but the trap will be forgotten once the fish is caught. The rabbit net is used to catch rabbits, but the net will be forgotten once the rabbit is caught. Words are used to convey meaning, so we should forget the words once we have grasped the meaning. (Zhuangzi)