Not every song I write is ecstasy. And it can happen only one time. After that, when you sing the same melody and words, it's pleasure, but you don't get wiped out.
At Princeton I gained a great deal of pleasure from success in my classes. knowing that I could accomplish those things, and I realized that my success was directly proportionate to the work I put in.
I don't hate work, composing is not work for me, it's my pleasure; it's my life. So why should I stop? If something is pleasurable and exciting and rewarding, why should one stop?