"Pathos truly is the mode for the pessimist. But tragedy requires a nicer balance between what is possible and what is impossible. And it is curious, although edifying, that the plays we revere, century after century, are the tragedies. In them, and in them alone, lies the belief-optimistic, if you will, in the perfectibility of man."

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Where's that toxic rhetoric coming from? Let's not make a false pretense of balance: it's coming, overwhelmingly, from the right. It's hard to imagine a Democratic member of Congress urging constituents to be "armed and dangerous" without being ostracized; but Representative Michele Bachmann, who did just that, is a rising star in the G.O.P.

— Paul Krugman