Marcus Aurelius' Stoic tome Meditations, written in Greek while on campaign between 170 and 180, is still revered as a literary monument to a philosophy of service and duty, describing how to find and preserve equanimity in the midst of conflict by following nature as a source of guidance and inspiration.
Wherein Antoninus recordeth, What and of whom, whether Parents, Friends, or Masters; by their good examples, or good advice and counsel, he had learned:
Divided into Numbers or Sections.
ANTONINUS Book vi. Num. xlviii. Whensoever thou wilt rejoice thyself, think and meditate upon those good parts and especial gifts, which thou hast observed in any of them that live with thee:
as industry in one, in another modesty, in another bountifulness, in another some other thing. For nothing can so much rejoice thee, as the resemblances and parallels of several virtues, eminent in the dispositions of them that live with thee, especially when all at once, as it were, they represent themselves unto thee. See therefore, that thou have them always in a readiness.
THE FIRST BOOK
I. Of my grandfather Verus I have learned to be gentle and meek, and to
refrain from all anger and passion. From the fame and memory of him that begot me I have learned both shamefastness and manlike behaviour. Of my mother I have learned to be religious, and bountiful; and to forbear, not only to do, but to intend any evil; to content myself with a spare diet, and to fly all such excess as is incidental to great wealth. Of my great-grandfather, both to frequent public schools and auditories, and to get me good and able teachers at home; and that I ought not to think much, if upon such occasions, I were at excessive charges.
II. Of him that brought me up, not to be fondly addicted to either of
the two great factions of the coursers in the circus, called Prasini, and Veneti: nor in the amphitheatre partially to favour any of the gladiators, or fencers, as either the Parmularii, or the Secutores. Moreover, to endure labour; nor to need many things; when I have anything to do, to do it myself rather than by others; not to meddle with many businesses; and not easily to admit of any slander.