"The life of the creative man is led, directed, and controlled by boredom. Avoiding boredom is one of our most important purposes. It is also one of the most difficult, because the amusement always has to be newer and on a higher level. So we are on a kind of spiral. The higher you go, the narrow the circle. As you go ahead the field of choice becomes more meager, in terms of self-entertainment. In the end, working is good because it is the last refuge of the man who wants to be amused. Not everything that amused me in the past amuses me so much any more."