"Choose you for friends those who will speak their mind, For those bad men that only speak to please See that you bolt and bar out of your house."[431] But they act just the contrary, for they turn away with horror from those who speak their mind, and hold different views as to what is expedient, while they welcome those bad and illiberal impostors (that only speak to please them) not only within their houses, but also to their affections and secrets. Now the simpler of these do not think right or claim to advise you in important matters, but only to assist in the carrying out of them: but the more cunning one stands by during the discussion, and knits his brows, and nods assent with his head, but says nothing, but if his friend express an opinion, he then says, "Hercules, you only just anticipated me, I was about to make that very remark." For as the mathematicians tell us that surfaces and lines neither bend nor extend nor move of themselves, being without body and only perceived by the mind, but only bend and extend and change their position with the bodies whose extremities they are: so you will catch the flatterer ever assenting with, and agreeing with, aye, and feeling with, and being angry with, another, so easy of detection in all these points of view is the difference between the friend and the flatterer. Moreover as regards the kind of good service. For the favour done by a friend, as the principal strength of an animal is within, is not for display or ostentation, but frequently as a doctor cures his patient imperceptibly, so a friend benefits by his intervention, or by paying off creditors, or by managing his friend's affairs, even though the person who receives the benefit may not be aware of it. Such was the behaviour of Arcesilaus on various occasions, and when Apelles[432] of Chios was ill, knowing his poverty, he took with him twenty drachmae when he visited him, and sitting down beside him he said, "There is nothing here but those elements of Empedocles, 'fire and water and earth and balmy expanse of air,' but you don't lie very comfortably," and with that he moved his pillow, and privately put the money under it. And when his old housekeeper found it, and wonderingly told Apelles of it, he laughed and said, "This is some trick of Arcesilaus." And the saying is also true in philosophy that "children are like their parents."[433] For when Cephisocrates had to stand his trial on a bill of indictment, Lacydes (who was an intimate friend of Arcesilaus) stood by him with several other friends, and when the prosecutor asked for his ring, which was the principal evidence against him, Cephisocrates quietly dropped it on the ground, and Lacydes noticing this put his foot on it and so hid it. And after sentence was pronounced in his favour, Cephisocrates going up to thank the jury, one of them who had seen the artifice told him to thank Lacydes, and related to him all the matter, though Lacydes had not said