In order that people may be happy in their work, these three things are needed: They must be fit for it: they must not do too much of it: and they must have a sense of success in it - not a doubtful sense, such as needs some testimony of others for its confirmation, but a sure sense, or rather knowledge, that so much work has been done well, and fruitfully done, whatever the world may say or think about it.
W. H. AudenThe most exciting rhythms seem unexpected and complex, the most beautiful melodies simple and inevitable.
W. H. Auden