感情用事

gǎn qíng yòng shì zhī rén

感情用事之人

one who acts impetuously

zuò shēng yi bù kě gǎn qíng yòng shì

做生意不可感情用事。

There is no place for sentiment in business.

wǒ jìn liàng bù gǎn qíng yòng shì

我尽量不感情用事。

I try not to become emotionally involved.