Koestler: The Literary and Political Odyssey of a Twentieth Century Skeptic - Michael Scammell Interesting quote from Johann Hari in a review on Slate:He [Koestler:] said he was cursed with "absolutitis": When a cause didn't offer him absolute salvation, he would discard it in despair and try to find another with the same promise. The one possibility he never explored for long is the only real answer to suffering—incremental democratic reform. Real improvements in human societies almost always come inch-by-inch, without any grand map of a perfect world. If you demand perfection, you can only be disappointed; if you demand improvement, you can succeed—and build enough hope to fight another day.

See http://www.slate.com/id/2238790/