Beckett's writing reveals his own immense learning. It is full of subtle allusions to a multitude of literary sources as well as to a number of philosophical and theological writers. The dominating influences on Beckett's thought were undoubtedly the Italian poet Dante, the French philosopher René Descartes, the 17th-century Dutch philosopher Arnold Geulincx--a pupil of Descartes who dealt with the question of how the physical and the spiritual sides of man interact--and, finally, his fellow Irishman and revered friend, James Joyce. But it is by no means essential for the understanding of Beckett's work that one be aware of all the literary, philosophical, and theological allusions.The widespread idea, fostered by the popular press, that Beckett's work is concerned primarily with the sordid side of human existence, with tramps and with cripples who inhabit trash cans, is a fundamental misconception. He dealt with human beings in such extreme situations not because he was interested in the sordid and diseased aspects of life but because he concentrated on the essential aspects of human experience. The subject matter of so much of the world's literature--the social relations between individuals, their manners and possessions, their struggles for rank and position, or the conquest of sexual objects--appeared to Beckett as mere external trappings of existence, the accidental and superficial aspects that mask the basic problems and the basic anguish of the human condition. The basic questions for Beckett seemed to be these: How can we come to terms with the fact that, without ever having asked for it, we have been thrown into the world, into being? And who are we; what is the true nature of our self? What does a human being mean when he says "I"?