Almanac: Paul Hindemith on creation and irrationality

"The ultimate reason for his humility will be the musician's conviction that beyond all the rational knowledge he has amassed and all his dexterity as a craftsman there is a region of visionary irrationality in which the veiled secrets of art dwell, sensed but not understood, implored but not commanded, imparting but not yielding. He cannot enter this region, he can only pray to be elected one of its messengers."

Paul Hindemith, A Composer's World: Horizons and Limitations