Socrates, the greatest philosopher was esteemed with great respect. An old acquaintance one day met Socrates and wanted to tell him something about an old friend of him. Socrates stopped him and asked him to take a triple-filter test for which the acquaintance agreed. Socrates asked the acquaintance if he believed any truth in what he heard about his friend for which the answer was a no. Socrates then asked him to take the second test. Is the information good about my friend for which the acquaintance said no. Socrates then asked the acquaintance whether the news about my friend is useful to me or not. For which the acquaintance said that it will be of no use, Then Socrates told his acquaintance that it is useless to talk about a person he doesn't know something not good and not useful to him. And better avoid such thing.