An elder told a young man: "Critical and insulting is no different from the mud. You see, the mud spots on my coat were splashed just after crossing the road. The rubbing would be bad at that time, so wait until the mud is dry. Let s deal with it later. However, any metaphor is lame. If mud spots become paint, coats become glass, and then the logic in the above metaphor is counterproductive. Life has prepared us all kinds of Logic, they are different from each other, and may still fight, and what kind of logic we follow depends on ourselves. What is most suitable for the text title of this paragraph? ['Heterogeneous logic.', 'Criticism and insult.', 'Things are dialectical.', 'Logic in life is not single.']