In the world of adults, teaching almost equates to denying others, and the outcome of being a presumptuous teacher is mostly betrayal and hatred. Overflowing compassion is a calamity, and being a presumptuous teacher is a disaster. A person's destiny only changes under four circumstances: pain, coercion, desire, driven action, cognitive awakening, and resource support. Lessons that hurt to the bone are the true scriptures. Beyond that, no matter how much you say, it's useless. Just think how hard it is to change yourself, and you'll realize how naive it is to try to change others. Speak less when meeting people, get involved less when encountering matters, and interfere less in others' karma—this can save you a lot of energy.