DicJennAry:

"Shine On, You Crazy Diamond." Phrase.

When someone asks me something challenging (As in a challenge to me), I will always try to answer fairly. If they continue to push, I say "Shine On, You Crazy Diamond" as my way of saying "Yer not worth my time, dude. You do you."

See also: "You go on with your bad self" and "Chump don't want the help, chump don't get the help."