This lot has the meaning of "there is a person outside of the person". It is an admonition to those involved to be careful in what they say and what they do. The more one thinks one knows everything and is well versed in the current situation, the more one becomes complacent and complacent without knowing it, and the more arrogant and rude one's words and actions tend to be. However, "one mountain is higher than another. The world is as wide as an ox's hair and as dense as a river. Therefore, you must not be too quick to speak out of turn. The better your situation is, the more you should be aware of the fact that "there is a strong middle move in a strong situation. Do not relax excessively, but always keep yourself well rounded, and if you see a deficiency, try to compensate for it. In all matters, be humble and patient, and do not try to win a quarrel of the tongue with a fleeting fancy.