A Zen master once said that the method to eternal happiness is to never argue with foolish people.
Intelligent people are roughly similar, but fools are indeed diverse in their foolishness. However, there is one situation where even the wisest appear exceedingly foolish, and that is during moments of anger—the angrier one gets, the more foolish they become.
Although Tang Luo did not know why the Grandmaster before him suddenly became so emotional, he had no familial or personal ties with the man and saw no reason to engage in an argument over principles with a Grandmaster.
Regardless of winning or losing the argument, there were no benefits. If you won, the only one to profit was him, and yet he would not think well of you. If you lost, that was even more common, because fools are very good at dragging your understanding down to their level, then using their rich experience to defeat you.