Fēng bù chuī, cǎo bù yáo.

風不吹, 草不搖。

Lit [If] the wind doesn't move [it], the grass doesn't stir.

Fig There must be a cause or reason for every phenomena. “There's no smoke without fire.”

Note [See also fēng cóng nǎli qǐ and làng cóng fēng lái below and the following entry.]

Topics CAUSATION CAUSE