Too often, folk on right and left refuse to concede that some problems are hard, so that reasonable people disagree about how to solve them. Partisans even refuse to admit that they are partisans, with biases and preferences born of character, upbringing and experience. Instead, politicians pose as objective seekers after truth, the better to portray their opponents as fools, knaves or dupes (or all three), whose facts cannot be trusted and whose motives are suspect.

from “Justices on the stage” by The Economist