HE who frequently converses with others, either in discourse or entertainments, or in any familiar way of living, must necessarily either become like his companions, or bring them over to his own way. For, if a dead coal be applied to a live one, either the first will quench the last, or the last kindle the first. Since, then, the danger is so great, caution must be used in entering into these familiarities with the vulgar; remembering that it is impossible to touch a chimney-sweeper without being partaker of his soot.
EPICTETUS. DISCOURSES. Book iii. §16. ¶1
IT is not thine, but another man's sin. Why should it trouble thee? Let him look to it, whose sin it is.
MARCUS AURELIUS. MEDITATIONS. ix. 18.
CHOOSE the best life; for custom will make it pleasant.
Attributed to EPICTETUS.