A passage from Epictetus
Epictetus, Enchiridion 36
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As the propositions, 'It is day,' or 'It is night,' are of great value for the disjunctive argument, but of none in the conjunctive; so, at a feast, the propositions, 'It is good to eat of this dish,' are of great value for the enjoyment of the feast, but of none for the conduct of life.
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