The Legend of the Great Virtuous Teacher

"A poor and sick boy who couldn't even memorize the Tao Te Ching, who relied on carrying coffins for the dead to pay for his stuttering, actually cultivated the art of peace in troubled times, setting off a huge wave of Huang Tiandang's rise; and then bravely retreated from the rapids at the most glorious time and became an immortal. Is he a great virtuous teacher or a sinner through the ages?"