問うは一度の恥、問わぬは末代の恥
Meanings
1
Better to ask and be embarrassed than not ask and never know
Proverb encouraging people to ask questions even at the risk of momentary embarrassment, because the ignorance from not asking lasts forever.
As the saying goes, 'Better to ask and be embarrassed than not ask and never know,' so you should ask right away about things you don't understand.