*148* But no rules need to be given about what is done in accordance with the established customs and conventions of a community; for these are in themselves rules; and no one ought to make the mistake of supposing that, because Socrates or Aristippus did or said something contrary to the manners and established customs of their city, he has a right to do the same; it was only by reason of their great and superhuman virtues that those famous men acquired this special privilege. But the Cynics' whole system of philosophy must be rejected, for it is inimical to moral sensibility, and without moral sensibility nothing can be upright, nothing morally good. #Special rules.# *149* It is, furthermore, our duty to honour and reverence those whose lives are conspicuous for conduct in keeping with their high moral standards, and who, as true patriots, have rendered or are now rendering efficient service to their country, just as much as if they were invested with some civil or military authority; it is our duty also to show proper respect to old age, to yield precedence to magistrates, to make a distinction between a fellow-citizen and a foreigner, and, in the case of the foreigner himself, to discriminate according to whether he has come in an official or a private capacity. In a word, not to go into details, it is our duty to respect, defend, and maintain the common bonds of union and fellowship subsisting between all the members of the human race. *150* XLII. Iam de artificiis et quaestibus, qui liberales habendi, qui sordidi sint, haec fere accepimus. Primum improbantur ii quaestus, qui in odia hominum incurrunt, ut portitorum, ut faeneratorum. Illiberales autem et sordidi quaestus mercennariorum omnium, quorum operae, non quorum artes emuntur; est enim in illis ipsa merces auctoramentum servitutis. Sordidi etiam putandi, qui mercantur a mercatoribus, quod statim vendant; nihil enim proficiant, nisi admodum mentiantur; nec vero est quicquam turpius vanitate. Opificesque omnes in sordida arte versantur; nec enim quicquam ingenuum habere potest officina. Minimeque artes eae probandae, quae ministrae sunt voluptatum: #Eunuchus II, 2, 26# Cetárii, lanií, coqui, fartóres, piscatóres, ut ait Terentius; adde huc, si placet, unguentarios, saltatores totumque ludum talarium.