“Happy are they who know not the taste of evil.”

Last of the Barons (1843), Book v, Chapter i.

#105
1900s, Maxims for Revolutionists (1903)

Sergei Diaghilev, p. 172
Essays and reviews, Cultural Amnesia: Notes in the Margin of My Time (2007)

2000s, Thus Spake Stallman (2000)
Context: If in my lifetime the problem of non-free software is solved, I could perhaps relax and write software again. But I might instead try to help deal with the world's larger problems. Standing up to an evil system is exhilarating, and now I have a taste for it.

XV. 398–401 (tr. Alexander Pope).
E. V. Rieu's translation:
: Meanwhile let us two, here in the hut, over our food and wine, regale ourselves with the unhappy memories that each can recall. For a man who has been through bitter experiences and travelled far can enjoy even his sufferings after a time.
Odyssey (c. 725 BC)

Treatise on Jealousy and Envy ch. ix

On est heureux par soi-même quand on sait s'y prendre, avoir des goûts simples, un certain courage, une certaine abnégation, l'amour du travail et avant tout une bonne conscience.
Letter to Charles Poney, (16 November 1866), published in Georges Lubin (ed.) Correspondance (Paris: Garnier Freres, 1964-95) vol. 20, p. 188; André Maurois (trans. Gerard Hopkins) Lélia: The Life of George Sand (New York: Harper, 1954) p. 418
Variant: One is happy once one knows the necessary ingredients of happiness: simple tastes, a certain degree of courage, self denial to a point, love of work, and above all, a clear conscience.
Source: Correspondance, 1812-1876, Volume 5

Source: The Blind Assassin