Qián (yào) yòng zài dāokǒu shàng.

錢(要)用在刀口上。

Lit Money [should be] used on the edge of the knife.

Fig One should spend one's money where it counts; don't be stingy on important matters.

Note [Cf. Guānchǎng Xiànxíng Jì, chap. 25; see also yǒu gāng shǐ zài below.]

Topics Guānchǎng Xiànxíng Jì INVESTMENT MONEY STRATEGY