" We have testimony about solitude from the most creative among us. For Mozart, " When I am, as it were, completely myself, entirely alone, and of good cheer -- say, traveling in a carriage or walking after a good meal or during the night when I cannot sleep -- it is on such occasions that my ideas flow best and most abundantly." For Kafka, " You need not leave your room. Remain sitting at your table and listen. You need not even listen, simply wait, just learn to become quiet, and still, and solitary. The world will freely offer itself to you to be unmasked." For Thomas Mann, " Solitude gives birth the original in us, to beauty unfamiliar and perilous -- to poetry." For Picasso, " Without great solitude, no serious work is possible. "