A young disciple of a philosopher came to his house and told him
-Master, a friend of yours was talking about you with malevolence -Wait! - He interrupted the philosopher -You already made pass through the three bars what you are going to tell me? -The three bars? -Yes, the first is the fence of truth. Are you sure that what you want to tell me is absolutely true? -No, I heard him comment to some neighbors. -Then at least you have made it through the second grid, which is goodness. What do you want to tell me Is it good for someone? -No, not really. Unlike... -Well! - The last grate is the need. Is it necessary to let me know that you are so worried about? -To tell the truth, no -"Then," said the wise man, smiling, "if it is not true, neither good nor necessary, let us bury it in oblivion.