Bestquotestore.info | Saadi

Whoever acquires knowledge but does not practice it is as one who ploughs but does not sow.
Whatever is produced in haste goes hastily to waste.
Reveal not every secret you have to a friend, for how can you tell but that friend may hereafter become an enemy. And bring not all mischief you are able to upon an enemy, for he may one day become your friend.
Roam abroad in the world, and take thy fill of its enjoyments before the day shall come when thou must quit it for good.
O wise man, wash your hands of that friend who associates with your enemies.
Nothing is so good for an ignorant man as silence and if he was sensible of this he would not be ignorant.