聞くは一時の恥、聞かぬは一生の恥
きくはいっときのはじきかぬはいっしょうのはじ
better to ask and be embarrassed than not ask and never know
恥も外聞もない is read as はじもがいぶんもない (haji mo gaibummonai) and means not worrying about one's reputation or appearance.
はじもがいぶんもない
haji mo gaibummonai
きくはいっときのはじきかぬはいっしょうのはじ
better to ask and be embarrassed than not ask and never know