What should Mitt Romney do now? He should peer deep into the abyss. He should look straight into the heart of darkness where lies a Republican defeat in a year the Republican presidential candidate almost couldn't lose. He should imagine what it will mean for the country, for a great political philosophy, conservatism, for his party and, last, for himself. He must look down unblinkingly.

And then he needs to snap out of it, and move.

He...