...the test of a first-rate intelligence is the ability to hold two
opposed ideas in the mind at the same time, and still retain the
ability to function. One should, for example, be able to see that
things are hopeless and yet be determined to make them otherwise. This
philosophy fitted on to my early adult life, when I saw the improbable,
the implausible, often the "impossible," come true. Life was something
you dominated if you were any good. Life yielded easily to intelligence
and effort, or to what proportion could be mustered of both.
-- F. Scott Fitzgerald "The Crack-Up." February, 1936.