if ... quit; when ... stop
負けたら終わりじゃなくて、やめたら終わりなんだよね。
It’s not over when you lose; it’s over when you quit.
酒を飲むのをやめたらどうだい。
Why don't you quit drinking?
仕事をやめたら、もう二度と戻れないんだよ。
Once you quit your job, there’s no going back.
もうやめたら？
Why don't you just quit?
たばこをやめたらどうなの？
Why don't you quit smoking?
学ぶことをやめたら、人は死んだも同然である。
Once a person stops learning, they’re as good as dead.
万一勤めをやめたら、どうしますか。
What would you do if you were to quit your job?
白人が暴力を振るう事をやめたら―黒人は銃を置きます
If white people stop using violence, Black people will lay down their guns.
— マルコムＸ (1992)