Geef me de moed om alles te accepteren wat niet in mijn vermogen ligt, de kracht om alles te veranderen wat wel in mijn vermogen ligt, en de wijsheid… - Epictetus

There is only one way to happiness and that is to cease worrying about things which are beyond the power of our will.

you think of yourself as no more than a single thread in the robe, whose duty it is to conform to the mass of people – just as a single white thread seemingly has no wish to clash with the remainder of the garment. [18] But I aspire to be the purple stripe, that is, the garment’s brilliant hem. However small a part it may be, it can still manage to make the garment as a whole attractive. Don’t tell me, then, ‘Be like the rest,’ because in that case I cannot be the purple stripe.3

"What would Heracles have been if he had said, "How am I to prevent a big lion from appearing, or a big boar, or brutal men?" What care you, I say? If a big boar appears, you will have a greater struggle to engage in; if evil men appear, you will free the world from evil men."