In tragedy anything comic is a blemish and in comedy anything tragic is ugly - Cicero

A: Quod est enim maius argumentum nihil eam prodesse quam quosdam perfectos philosophos turpiter vivere?
M: Nullum vero id quidem argumentum est. Nam ut agri non omnes frugiferi sunt qui coluntur [...] sic animi non omnes culti fructum ferunt. Atque, ut in eodem simili verser, ut ager quamvis fertilis sine cultura fructuosus esse non potest, sic sine doctrina animus; ita est utraque res sine altera debilis. Cultura autem animi philosophia est; haec extrahit vitia radicitus et praeparat animos ad satus accipiendos eaque mandat eis et, ut ita dicam, serit, quae adulta fructus uberrimos ferant.

for it is not having insufficient knowledge, but persisting a long time in insufficient knowledge that is shameful; since the one is assumed to be a disease common to all, but the other is assumed to be a flaw to an individual.

For of all gainful professions, nothing is better, nothing more pleasing, nothing more delightful, nothing better becomes a well-bred man than agriculture.