Anthony Joshua has what he craved after defeating Wladimir Klitschko in the most dramatic of heavyweight fights, in which the young pretender became the nemesis of the old king and claimed the gilded throne.
His aim now is to "hold all the belts for 10 years like Klitschko did" and create a legacy.
"I want to maintain what we've been building on; it would be silly to let it go," Joshua said yesterday, insisting that his watchwords would remain hunger and humility, and that the 11 rounds with the Ukrainian, in his 69th contest, had given him the equivalent of 100 rounds of experience.
So, after speaking to his son JJ and mother Yeta yesterday, the 27-year-old who had just earned 15 million ($28m) and added two more major heavyweight belts to his collection went out and bought a notebook and pencil.
"I want to get stronger. As I'm thinking about the fight and it's still fresh, I'm actually taking down notes of little things of how I can improve."
Sporting a swollen, blackened left eye, and shadow-boxing his explanations of the fight at a rented mansion in St John's Wood, Joshua said: "It was really good, I had fun. I had 44 rounds of boxing as a professional before that fight. Now I feel like I've had 144 rounds.
"I took rounds upon rounds of experience, and I can move forward now on to bigger and better things.
"I don't just like to win but I like to win in fashion, because it adds a lot of stock to my value. We definitely ticked the entertainment box."
By retaining the International Boxing Federation belt and claiming the World Boxing Association crown, Joshua's stock rose overnight, making him a global star of the sport.
Joshua can now have the pick of opponents, and his promoter Eddie Hearn said that the new star of the division could draw any opponent in any global market.
That will be the promotional challenge for the team around the British heavyweight, given the success of the event and the 90,000 sell-out crowd at Wembley.
The public demand will grow for Joshua to face Tyson Fury, when he returns to the sport. "That's why I mentioned Tyson Fury, because the British public would want to see us fight," Joshua said.
Hearn knows that in Joshua, they now hold all the promotional aces.
"We go wherever there is the most money," he said. "Anthony wouldn't mind going to Germany, something different, to face Klitschko if there is a second fight. He would have no problem going anywhere. The States, China, the Middle East, the Principality Stadium. We wouldn't have any problem selling it.
"Anthony will have May, June off, so he is not going to be ready until October. I want him to box in April-May and then go again in October-November every year as regular fixtures."