作者赠言:Let go of your restlessness, calm down to read, let go of your anxiety, bravely learn to face it, let go of your greed, give up and gain, let go of your vanity, don't be arrogant. Is what you think really what you think?Instead of worrying about the future, it is better to grasp the present moment. Rather than miss the opportunity, it is better to read the essence!