For who knoweth what [is] good for man in [this] life?
&c.] To be in a higher or lower station of life, to live in grandeur or meanness, to be rich or poor, learned or unlearned; since that which seems most agreeable to human nature is at, ended with so much vanity, the occasion of so much sin, and often issues in ruin and misery, that no man knows what is best for him; and therefore it is the wisest way to be content with what a man has, and enjoy it in the most comfortable manner, and use it to the best ends and purposes he can. The Targum is,
``for who is he that knows what is good for a man in this world, but to study in the law, which is the life of the world?''so the Midrash, all the days of his vain life, which he spendeth as a shadow?