Our pains are no excuse for slandering the world. - Anatole France
Declare your jihad on thirteen enemies you cannot see -egoism, arrogance, conceit, selfishness, greed, lust, intolerance, anger, lying, cheating, gossiping and slandering. If you can master and destroy them, then you will be read to fight the enemy you can see. - أبو حامد الغزالي
What is evil? Killing is evil, lying is evil, slandering is evil, abuse is evil, gossip is evil, envy is evil, hatred is evil, to cling to false doctrine is evil; all these things are evil. And what is the root of evil? Desire is the root of evil, illusion is the root of evil. - Gautama Buddha