“Take heed not to be transformed into a Caesar, not to be dipped in the purple dye, for it does happen. Keep yourself therefore, simple, good, pure, grave, unaffected, the friend of justice, religious, kind, affectionate, strong for your proper work. Wrestle to be the man philosophy wished to make you. Reverence the gods, save men. Life is brief; there is but one harvest of earthly existence, a holy disposition and neighborly acts.”
VI, 30
Meditations (c. 121–180 AD), Book VI
Original
Ὅρα μὴ ἀποκαισαρωθῇς, μὴ βαφῇς· γίνεται γάρ. τήρησον οὖν σεαυτὸν ἁπλοῦν, ἀγαθόν, ἀκέραιον, σεμνόν, ἄκομψον, τοῦ δικαίου φίλον, θεοσεβῆ, εὐμενῆ, φιλόστοργον, ἐρρωμένον πρὸς τὰ πρέποντα ἔργα. ἀγώνισαι, ἵνα τοιοῦτος συμμείνῃς, οἷόν σε ἠθέλησε ποιῆσαι φιλοσοφία. αἰδοῦ θεούς, σῷζε ἀνθρώπους. βραχὺς ὁ βίος· εἷς καρπὸς τῆς ἐπιγείου ζωῆς, διάθεσις ὁσία καὶ πράξεις κοινωνικαί.
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Marcus Aurelius 400
Emperor of Ancient Rome 121–180Related quotes

Choruses from The Rock (1934)
Context: The lot of man is ceaseless labor,
Or ceaseless idleness, which is still harder,
Or irregular labour, which is not pleasant.
I have trodden the winepress alone, and I know
That it is hard to be really useful, resigning
The things that men count for happiness, seeking
The good deeds that lead to obscurity, accepting
With equal face those that bring ignominy,
The applause of all or the love of none.
All men are ready to invest their money
But most expect dividends.
I say to you: Make perfect your will.
I say: take no thought of the harvest,
But only of proper sowing.
Fragment 16 "What is the best provision for old age," in Moral Exhortation (1986), p. 32

Ain-i-Akbari by Abul Fazl. quoted from Lal, K. S. (1999). Theory and practice of Muslim state in India. New Delhi: Aditya Prakashan. Chapter 2

Speak, Memory: A Memoir (1951)
Context: Her intense and pure religiousness took the form of her having equal faith in the existence of another world and in the impossibility of comprehending it in terms of earthly life. All one could do was to glimpse, amid the haze and the chimeras, something real ahead, just as persons endowed with an unusual persistence of diurnal cerebration are able to perceive in their deepest sleep, somewhere beyond the throes of an entangled and inept nightmare, the ordered reality of the waking hour.

“You try to keep life simple but it never works, and in the end all you have left is yourself.”
Source: A is for Alibi