A proverb meaning that hurrying causes mistakes—'haste makes waste'—warning that rushing often leads to failure.
急いては事を仕損じるから、まず計画をよく練ろう。
Haste makes waste, so let's first plan carefully.
試験で焦って答案を急いだら、書き間違いが多くなった。急いては事を仕損じるね。
I rushed through the exam and made many mistakes. Haste makes waste, indeed.
新システムの導入を急いだ結果、トラブルが多発した。まさに急いては事を仕損じるだ。
Rushing the introduction of the new system caused many problems. Truly, haste makes waste.