短気は損気。

tbd

Haste is waste.

Haste makes waste.

つまらないことで腹を立てるなよ。短気は損気っていうだろ。

tbd

Don't get all bent out of shape over little things. A short temper can make you poor.

そんなにカッカするなよ。短気は損気って言うだろ。

tbd

Don't be such a hothead. A short temper will cost you.