【系风捕影】〖xì fng b yng〗[chase the wind and clutch at shadows -- make groundless accusations; chase at shadows; run after a shadow; speak on hearsay evidence]

系而不食因难吃，

风波平地事失实。

捕鼠令骥长短用，

影响之谈传虚拟。

拴住风，捉住影子。比喻无法办到的事。也比喻说话做事以不可靠的传闻或表面现象作根据。Tie up wind catch shadow. Metaphor no  method accomplish matter. also metaphor to speaking and doing things according to on unreliable hearsay or superficial phenomena. 同：捕风捉影。