expression, i-adjective
you can never be too careful; better safe than sorry
Proverb used to advise caution; literally 'there is nothing that surpasses being careful.'
旅行の前には、用心するに越したことはないから、パスポートのコピーを取っておこう。
Before a trip, you can never be too careful, so let's make a copy of our passports.
Thinking it's better to be safe than sorry, I took an umbrella just in case.