I came across this quote from WSC today doing some professional reading. It's about life as a journey:
"Every day you may make progress. Every step may be fruitful. Yet there may 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, so far from discouraging, only adds to the joy and glory of the climb."
Quoted in Zaltman & Zaltman, Marketing Metaphoria: What Deep Metaphors Reveal About the Mind of Consumers (2008), p. 94. (For anyone wondering how this amounts to "professional reading" by a lawyer, replace "consumers" with "jurors", and you'll see. The book was recommended by a continuing legal education speaker.)