A wise saying in the mouth of fools is like a thorn that goes into the hand of a man who drinks too much.
كَلامُ الحِكْمَةِ الَّذِي يَقُولُهُ الحَمقَى يُشبِهُ السِّكِّيرَ الَّذِي يُمسِكُ شَوكاً بِيَدِهِ.