Then appeared to him, in turn, Diagnotus, who had inspired him with a taste for philosophy, and made agreeable to his eyes the pallet, the covering made of a simple skin, and all the apparel of Hellenic discipline; Junius Rusticus, who taught him to avoid all affectation of elegance in style, and loaned him the Conversations of Epictetus; Apollonius of Chalcis, who realized the Stoic ideal of extreme firmness and perfect sweetness; Sextus of Chaeroneia, so grave and so good; Alexander the grammarian, who censured with such refined politeness; Fronto, "who taught him the envy, duplicity, and hypocrisy of a tyrant, and the hardness which may exist in the heart of a patrician;" his brother Severus, "who made him understand Thrasia, Helvidius, Cato, Brutus, who gave him the idea of what a free government is, where the rule is the natural equality of the citizens and the equality of their rights; of a royalty which places before all else the respect for the liberty of the citizens;" and, rising above all others in his immaculate grandeur, Antonine, his father by adoption, whose picture he traces for us with redoubled gratitude and love. "I thank the gods," said he finally, "for having given me good ancestors, good parents, a good sister, good teachers, and in my surroundings, in my relations, in my friends, men almost all filled with goodness. I never allowed myself to be wanting in deference towards them: from my natural disposition, I could sometimes have shown irreverence; but the benevolence of the gods never permitted the occasion to present itself. I am also indebted to the gods, who preserved pure the flower of my youth, for having been reared under the rule of a prince, and a father who strove to free my soul from all trace of pride, to make me understand that it is possible, while living in a palace, to dispense with guards, with splendid clothes, with torches, with statues, to teach me, in short, that a prince can almost contract his life within the limits of that of a simple citizen, without, on that account, showing less nobility and vigor when he comes to be an emperor, and transact the affairs of state. They gave me a brother, whose manners were a continual exhortation to watch over myself, while his deference and attachment should have made the joy of my heart.