A quote
How long shall we go on making demands upon the gods, as if we were still unable to support ourselves? How long shall we continue to fill with grain the market-places of our great cities? How long must the people gather it in for us? How long shall many ships convey the requisites for a single meal, bringing them from no single sea? The bull is filled when he feeds over a few acres; and one forest is large enough for a herd of elephants. Man, however, draws sustenance both from the earth and from the sea.
Seneca·Letter 60 — On Harmful Prayers (§2)·trans. Gummere