How slowly one advances in a boat that does not float with the stream in a specific direction! How much easier it is when one can connect with the work of great predecessors whose value is not doubted by anyone. A personal experiment, a construction whose foundations one must dig himself and whose walls one must erect himself, runs a real risk of becoming a humble hovel. But perhaps one prefers to live there rather than in a palace that has been built by others.

MC Escher  1958