Every day you may make progress. Every step may be fruitful. Yet there will stretch out before you an ever-lengthening, ever-ascending, ever-improving path. You know you will never get to the end of the journey. But this, far from discouraging, only adds to the joy and glory of the climb.
-Sir Winston Churchill, from the essay 'Painting as a Pastime', published at the end of Thoughts and Adventures.