The people who can hurt you deeply are the people who know you best, and they must be cultivated by your own hands. People are like this, when they don't know each other very well, they all respect each other as guests. But when you pay trust, expose the bottom line, show the wound, and sincerely talk, the other party also has the capital and method to hurt you in addition to being moved. Sincerity may not be able to exchange for sincerity, but too much dedication will definitely be exchanged for harm, so that others know too much about themselves, is tantamount to not hanging on at all, such frankness will be considered cheap, the result is to hurt you without discussion. Remember that where three points are retained, the principle must be 100% defended.
