大事 だいじ まえ小事 しょうじ
daijino maeno shōji

Expression

1. don't put the trivial ahead of the important; don't sweat the small stuff; don't bother with the details (before embarking on a great enterprise)

Proverb
Expression

2. read the fine print; be careful of the small things (before embarking on a great enterprise)

Proverb