The wise man tells not what he knows. It is not prudent to sport with one's head by revealing the king's secrets.
SaadiTo tell a falsehood is like the cut of a saber: for though the wound may heal, the scar of it will remain.
SaadiHe who, when he hath the power, doeth not good, when he loses the means will suffer distress. There is not a more unfortunate wretch than the oppressor; for in the day of adversity nobody is his friend.
Saadi