Socrates was said to hold knowledge in high esteem. One day an acquaintance met the great philosopher and said, "Socrates, do you know what I just heard about your friend?" "Pause a moment," Socrates replied. "Before telling me anything I'd like you to pass a little test. It's called the Triple Filter Test." "Triple filter?" "That's right," Socrates continued. "Before you talk to me about my frien