IF you would be good, first believe that you are bad.
EPICTETUS. FRAGMENTS. 2.
WHAT is it then that doth keep thee here, if things sensible be so mutable and unsettled? and the senses so obscure, and so fallible? and our souls nothing but an exhalation of blood ? and to be in credit among such, be but vanity? What is it that thou dost stay for? an Extinction, or a Translation; either of them with a propitious and contented mind. But till that time come, what will content thee? what else, but to worship and praise the Gods; and to do good unto men. To bear with them, and to forbear to do them any wrong. And for all external things belonging either to this thy wretched body, or life, to remember that they are neither thine, nor in thy power.
MARCUS AURELIUS. MEDITATIONS. Book v. 27.