"A man who wastes his time ...."

A man who wastes his time doing useless things is either a fool or a knave.  Many things must be done, like it or not, for your country or lord, and they leave you little time of your own.  Consider: for his own welfare a man has no choice but to labor so he may secure food, clothing, and shelter.  Man’s daily necessities do not go beyond these three.  When he can live peacefully, neither hungry nor cold nor buffeted by the wind or rain, he is happy.  But all men are prey to sickness, and when sickness strikes, the pains are hard to bear; the healing art should not be forgotten. Adding medicine gives four essentials.  If a man needs but cannot obtain them, he is poor; if he lacks none of the four, he is rich.  If one seeks to obtain more than these four, it is extravagance.  Why should anyone who is modest in his demands for these four ever feel that he has not enough?

Kenko