But for the following fifteen good qualities he is called well-behaved: if he is always humble, steady, free from deceit and curiosity; if he abuses nobody; … if he is not proud of his learning; if he does not find fault with others; if he is not angry with friends; if he speaks well even of a bad friend behind his back; if he abstains from quarrels and rows; …
Be silent, O thou who knowest many things! for he that speaketh little will be free from reproach on the Day of Judgment. The man of many words is deaf; no counsel does he heed like silence. …