When a mean wretch cannot vie with another in virtue, out of his wickedness he begins to slander. The abject envious wretch will slander the virtuous man when absent, but when brought face to face his loquacious tongue becomes dumb.
SaadiAvoid that which an enemy tells you to do; for if you follow his advice, you will smite your, knees with the hand of sorrow. If he shows you a road straight as an arrow, turn from it and go the other way.
Saadi