I found this on Lostpedia.... interesting reference....
The Myth of Sisyphus is a philosophical essay by Albert Camus. It comprises about 120 pages and was published originally in 1942 in French as Le Mythe de Sisyphe; the English translation by Justin O'Brien followed in 1955.
In the essay, Camus introduces his philosophy of the absurd: man's futile search for meaning, unity and clarity in the face of an unintelligible world devoid of God and eternity. Does the realization of the absurd require suicide? Camus answers: "No. It requires revolt." He then outlines several approaches to the absurd life. The final chapter compares the absurdity of man's life with the situation of Sisyphus, a figure of Greek mythology who was condemned to repeat forever the same meaningless task of pushing a rock up a mountain, only to see it roll down again. The essay concludes, "The struggle itself...is enough to fill a man's heart. One must imagine Sisyphus happy."