愚蠢是治不好的

be a fool for a fool's errand make a fool of a fool of circumstances a fool's paradise be a fool to sth. be a fool for one's pains a tempest in a barrel bear a part in a friend in court in a tight spot a fool's errand be a fool to... a fool's paradise make a fool of pound sth in a mortar with a pestle take sb for a fool make a fool of sb be a fool to sth. be a fool for one's pains a tempest in a barrel a storm in a teacup in a placid mood