No one ever sowed the grain of generosity who gathered not up the harvest of the desire of his heart.
SaadiThe sons of Adam are limbs of each other, Having been created of one essence. When the calamity of time affects one limb, the other limbs cannot remain at rest. If you have no sympathy for the troubles of others, You are unworthy to be called by the name of a human.
SaadiWhen 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.
Saadi