Christopher Morley (5 May 1890 – 28 March 1957) was an American journalist, novelist, essayist and poet. He also produced stage productions for a few years and gave college lectures.
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Life is indeed difficult, partly because of the real difficulties we must overcome in order to survive, and partly because of our own innate desire to always do better, to overcome new challenges, to self-actualize. Happiness is experienced largely in striving towards a goal, not in having attained things, because our nature is always to want to go on to the next endeavor.