لِسَانُ ٱلْحُكَمَاءِ يُحَسِّنُ ٱلْمَعْرِفَةَ، وَفَمُ ٱلْجُهَّالِ يُنْبِعُ حَمَاقَةً.
The tongue of the wise useth knowledge aright: but the mouth of fools poureth out foolishness.