Missionary zeal does not grow out of intellectual beliefs, nor out of theological arguments, but out of love. If I do not love a person I am not moved to help him by proofs that he is in need; if I do love him, I wait for no proof of a special need to urge me to help him.
I was fifteen years old, and I hardly knew how to play a simple Bach prelude on the piano when I began to compose music, and at the most advanced level. I had never studied such things as harmony.