Only when he has suffered does the fool learn. - Hesiod

Χρύσεον μὲν πρώτιστα γένος μερόπων ἀνθρώπων
ἀθάνατοι ποίησαν Ὀλύμπια δώματ᾽ ἔχοντες.
οἱ μὲν ἐπὶ Κρόνου ἦσαν, ὅτ᾽ οὐρανῷ ἐμβασίλευεν·
ὥστε θεοὶ δ᾽ ἔζωον ἀκηδέα θυμὸν ἔχοντες,
νόσφιν ἄτερ τε πόνων καὶ ὀιζύος· οὐδέ τι δειλὸν
γῆρας ἐπῆν.

But the rest, countless plagues, wander amongst men; for earth is full of evils and the sea is full.

Let it please thee to keep in order a moderate-sized farm, that so thy garners may be full of fruits in their season.