Zuò xuéwèn yào yǒu zìjǐ de jiànjiě, bùnéng bàngrén-líbì.
Scholarship requires one's own views. One cannot just lean on others' fences.
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From 严羽's Song dynasty 《沧浪诗话》 (Canglang's Notes on Poetry): 是自家闭门凿破此片田地,即非傍人篱壁,拾人涕唾得来者. True poets cultivate their own ground rather than gleaning castoffs from others' fences.