My favorite Don King quote comes from an old Mike Tyson promo vid that was aired post-Douglas I believe. It showed Tyson and King doing random things and talking about overcoming obstacles and shit. But the best clip was of King and Tyson walking on a beach with Mike Tyson throwing food to some birds.

Tyson: The birds aint coming for the food... they must not be hungry

Don King: (obviously not listening, in a voice you'd use to talk to a child) Thats right Mike, feed the birds. This is stupendous.