Rongrong succeeded in her PhD defense at the University of Cologne with cordial praise from her mentor. She came back to China mainly for a rest. Twenty-four years of study had boiled her into a 93-pound skeleton of 5'5", a "skinny beauty" as she jokingly called it. No rush to worry about job. She had the advantage in education that interested a number of major companies. It could wait to decide whether to start her own business or get employed, whether to work at home or abroad.