一いち事じが万ばん事じ

expression

one instance reveals the whole; a single case tells you everything

Proverb meaning that a single example or action is representative of the whole; often used to judge character or patterns.

• 彼かれの遅ち刻こくは一いち事じが万ばん事じだ。仕し事ごとの態たい度どもだらしないに違ちがいない。

  His being late is a sign of the whole. His work attitude must be sloppy too.

• 一いち事じが万ばん事じというから、小ちいさなミスでも見み逃のがせない。

  As they say, one thing stands for everything, so even a small mistake can't be overlooked.