Letters from a Stoic 17 : 3

Doubtless, your object, what you wish to attain by such postponement of your studies, is that poverty may not have to be feared by you. But what if it is something to be desired? Riches have shut off many a man from the attainment of wisdom; poverty is unburdened and free from care. When the trumpet sounds, the poor man knows that he is not being attacked; when there is a cry of "Fire," he only seeks a way of escape, and does not ask what he can save; if the poor man must go to sea, the harbour does not resound, nor do the wharves bustle with the retinue of one individual. No throng of slaves surrounds the poor man, – slaves for whose mouths the master must covet the fertile crops of regions beyond the sea.