To escape boredom, man works either beyond what his usual needs require, or else he invents play, that is, work that is designed to quiet no need other than that for working in general.
Friedrich NietzscheMan, full of emptiness and torn apart with homesickness for the desert has had to create from within himself an adventure, a torture-chamber, an unsafe and hazardous wilderness- this fool, this prisoner consumed with longing and despair, became the inventor of 'bad conscience'.
Friedrich Nietzsche