Though he married twice, Dr. Seuss never had any children of his own. His slogan? "You have 'em, I'll amuse 'em."
[Seuss's favorite story (The Lorax, "about people who raise hell in the environment and leave nothing behind") was written on a laundry list as he sat beside a hotel pool in Kenya watching a herd of elephants. "I wrote it as a piece of propaganda and disguised the fact," he later recalled. "I was on the soapbox. I wasn't afraid of preaching -- but I was afraid of being dull."]
Sources
Best of Uncle John`s Bathroom Reader