A passage from Epictetus
Epictetus, Enchiridion 7
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Consider when, on a voyage, your ship is anchored; if you go on shore to get water you may amuse yourself with picking up a shellfish, or an onion, in your way; but your thoughts and continual attention ought to be bent towards the ship.
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At dawn, when you have trouble getting out of bed, tell yourself: 'I have to go to work — as a human being.'
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Take care not to be Caesarified, or dyed with purple; for it does happen. Keep thyself then simple, good, pure, serious, free from affectation.
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It is a man's special privilege to love even those who wrong him.