17 Mark them By this expression he means, that it is all one to him what persons they single out for themselves for imitation, provided they conform themselves to that purity of which he was a pattern. By this means all suspicion of ambition is taken away, for the man that is devoted to his own interests wishes to have no rival. At the same time he warns them that all are not to be imitated indiscriminately, as he afterwards explains more fully.