"Looking back on my attitude to the commonly accepted pleasures of life, I can say that I have never set much store by them. I hardly care what I eat, provided it suffices, and I care not at all for wine or spirits. When I was fourteen someone gave me a glass of beer, and I thought it so unpleasant I have never touched beer again. As for cigarettes, I dislike even being in a room where people are smoking. Sex has been of no great consequence to me, and the celibacy of desert life left me untroubled. Marriage would certainly have been a crippling handicap. I have therefore been able to lead the life of my choice with no sense of deprivation. Existence in the desert had a simplicity that I found wholly satisfying; there, everything not a necessity was an encumbrance. It was those three months in the Sahara in 1938 that taught me to appreciate things that most Europeans are able to take for granted: clean water to drink; meat to eat; a warm fire on a cold night; shelter from the rain; above all, tired surrender to sleep."