“My freedom thus consists in my moving about within the narrow frame that I have assigned to myself for each one of my undertakings. I shall go even further: my freedom will be so much the greater and more meaningful the more narrowly I limit my field of action and the more I surround myself with obstacles. Whatever diminishes constraint diminishes strength. The more constraints one imposes, the more one frees oneself of the claims that shackle the spirit.” — Igor Stravinsky, Poetics of Music”