渇に臨みて井を穿つ かつにのぞみてせいをうがつ かつにのぞみていをうがつ to fail to make timely preparations; to not dig a well until one is thirsty exp v5t proverb Advanced ➥
磨穿鉄硯 ませんてっけん showing unyielding diligence in one's studies; wearing a hole through one's metal inkstone from constant studying n yoji Advanced ➥
涓滴岩を穿つ けんてきいわをうがつ slow but steady wins the race; constant effort will result in success; constant dripping wears away a stone exp proverb Advanced ➥