Measure what is measurable, and make measurable what is not so.
If music in general is an imitation of history, opera in particular is an imitation of human willfulness; it is rooted in the fact that we not only have feelings but insist upon having them at whatever cost to ourselves. The quality common to all the great operatic roles, e.g., Don Giovanni, Norma, Lucia, Tristan, Isolde, Br?nnhilde, is that each of them is a passionate and willful state of being. In real life they would all be bores, even Don Giovanni.
Rhymes, meters, stanza forms, etc., are like servants. If the master is fair enough to win their affection and firm enough to command their respect, the result is an orderly happy household. If he is too tyrannical, they give notice; if he lacks authority, they become slovenly, impertinent, drunk and dishonest.
The belief that politics can be scientific must inevitably produce tyrannies. Politics cannot be a science, because in politics theory and practice cannot be separated, and the sciences depend upon their separation. Empirical politics must be kept in bounds by democratic institutions, which leave it up to the subjects of the experiment to say whether it shall be tried, and to stop it if they dislike it, because, in politics, there is a distinction, unknown to science, between Truth and Justice.
Those of us who write and study history are accustomed to its approximations and ambiguities. This is why we do not take literally the tenth-hand reports of frightened and illiterate peasants who claim to have seen miracles or to have had encounters with messiahs and prophets and redeemers who were, like them, mere humans. And this is also why we will never submit to dictation from those who display a fanatical belief in certainty and revelation.
Men! She could not understand why so many women feared them. Hadn't the gods made them with the most vurnerable part of their guts hanging right out of their bodies, like a misplaced bit of bowel? Kick them there and they curled up like snails. Caress them there and their brains melted.