Marcus Aurelius
Meditations 1.7
From Rusticus I received the impression that my character required improvement and discipline; and from him I learned not to be led astray to sophistic emulation, nor to writing on speculative matters, nor to delivering little hortatory orations, nor to showing myself off as a man who practises much discipline, or does benevolent acts in order to make a display; and to abstain from rhetoric, and poetry, and fine writing; and not to walk about in the house in my outdoor dress, nor to do other things of the kind; and to write my letters with simplicity, like the letter which Rusticus wrote from Sinuessa to my mother; and with respect to those who have offended me by words, or done me wrong, to be easily disposed to be pacified and reconciled, as soon as they have shown a readiness to be reconciled; and to read carefully, and not to be satisfied with a superficial understanding of a book; nor hastily to give my assent to those who talk overmuch; and I am indebted to him for being acquainted with the discourses of Epictetus, which he communicated to me out of his own collection.
Marcus Aurelius, Meditations 1.7, translated by George Long
From Rusticus, to become aware of the fact that I needed amendment and training for my character; and not to be led aside into an argumentative sophistry; nor compose treatises on speculative subjects, or deliver little homilies, or pose ostentatiously as the moral athlete or unselfish man; and to eschew rhetoric, poetry, and fine language; and not to go about the house in my robes, nor commit any such breach of good taste; and to write letters without affectation, like his own letter written to my mother from Sinuessa; to shew oneself ready to be reconciled to those who have lost their temper and trespassed against one, and ready to meet them halfway as soon as ever they seem to be willing to retrace their steps; to read with minute care and not to be content with a superficial bird's-eye view; nor to be too quick in agreeing with every voluble talker; and to make the acquaintance of the Memoirs of Epictetus, which he supplied me with out of his own library.
Marcus Aurelius, Meditations 1.7, translated by C. R. Haines