This world rests upon four supports. A scholar who applies his knowledge (for himself), A rich man who does favors generously, an ignorant who is not too arrogance to learn, and a poor man who does not vent his life to come with other worldly pleasures. Woe are the scholars who suspend acting upon their knowledge, the rich men who withhold giving, the ignorant who feel arrogance against knowledge, and the poor men who vend their life to come with others worldly pleasures.