"Do you know how the Margaritifera oyster produces pearls? By contracting a near-fatal disease, by enveloping an unassimilable foreign body, a grain of sand, for instance, in a ball of mucus. It almost dies in the process. To hell with the pearl, give me the healthy oyster. Virtue is not bound up with misery, my friend." -Bertolt Brecht, 'Life of Galileo'