In another lively passage, Seneca brings vividly before us a picture of the various scholars assembled in a school of the philosophers. After observing that philosophy exercises some influence even over those who do not go deeply in it, just as people sitting in a shop of perfumes carry away with them some of the odour, he adds, "Do we not, however, know some who have been among the audience of a philosopher for many years, and have been even entirely uncoloured by his teaching? Of course I do, even most persistent and continuous hearers; whom I do not call pupils, but mere passing auditors of philosophers. Some come to hear, not to learn, just as we are brought into a theatre for pleasure's sake, to delight our ears with language, or with the voice, or with plays. You will observe a large portion of the audience to whom the philosopher's school is a mere haunt of their leisure. Their object is not to lay aside any vices there, or to accept any law in accordance with which they may conform their life, but that they may enjoy a mere tickling of their ears. Some, however, even come with tablets in their hands, to catch up not _things_ but _words_. Some with eager countenances and spirits are kindled by magnificent utterances, and these are charmed by the beauty of the thoughts, not by the sound of empty words; but the impression is not lasting. Few only have attained the power of carrying home with them the frame of mind into which they had been elevated."
It was to this small latter class that Seneca belonged. He became a Stoic from very early years. The Stoic philosophers, undoubtedly the noblest and purest of ancient sects, received their name from the fact that their founder Zeno had lectured in the Painted Porch or Stoa Paecile of Athens. The influence of these austere and eloquent masters, teaching high lessons of morality and continence, and inspiring their young audience with the glow of their own enthusiasm for virtue, must have been invaluable in that effete and drunken age. Their doctrines were pushed to yet more extravagant lengths by the Cynics, who were so called from a Greek word meaning "dog," from what appeared to the ancients to be the dog-like brutality of their manners. Juvenal scornfully remarks, that the Stoics only differed from the Cynics "by a tunic," which the Stoics wore and the Cynics discarded. Seneca never indeed adopted the practices of Cynicism, but he often speaks admiringly of the arch-Cynic Diogenes, and repeatedly refers to the Cynic Demetrius, as a man deserving of the very highest esteem. "I take with me everywhere," writes he to Lucilius, "that best of men, Demetrius; and, leaving those who wear purple robes, I talk with him who is half naked. Why should I not admire him? I have seen that he has no want. Any one may despise all things, but no one _can_ possess all things. The shortest road to riches lies through contempt of riches. But our Demetrius lives not as though he _despised_ all things, but as though he simply suffered others to possess them."