Moral Letters to Lucilius Section 21

Hoc ut scias ita esse, ad omne pulchrum vir bonus sine ulla cunctatione procurret; stet illic licet carnifex, stet tortor atque ignis, perseverabit nec quid passurus, sed quid facturus sit, aspiciet, et se honestae rei tamquam bono viro credet; utilem illam sibi iudicabit, tutam, prosperam. Eundem locum habebit apud illum honesta res, sed tristis atque aspera, quem vir bonus pauper aut exul ac pallidus.

Pour reconnaître que je dis vrai, vois l’homme vertueux, à quelque épreuve que l’honneur l’appelle, y courir sans délai. Que devant lui soit le bourreau, le tortionnaire et le bûcher, il restera ferme ; ce n’est point le supplice, c’est le devoir qu’il envisage : il a foi dans sa noble mission comme il aurait foi
dans un cœur honnête, il la juge utile, sûre, propice à ses intérêts. Un acte honorable est vu par lui du même œil que l’honnête homme pauvre, exilé, pâli par la souffrance.

This can be proved to you by the fact that the good man will hasten unhesitatingly to any noble deed; even though he be confronted by the hangman, the torturer, and the stake, he will persist, regarding not what he must suffer, but what he must do; and he will entrust himself as readily to an honourable deed as he would to a good man; he will consider it advantageous to himself, safe, propitious. And he will hold the same view concerning an honourable deed, even though it be fraught with sorrow and hardship, as concerning a good man who is poor or wasting away in exile.