The Portugal winger, who looks to be on the way out of United, claims he wants to "re-write the history of football".
Ronaldo is set to seal a world record transfer to the Spanish club this summer after United accepted a bid.
And in an interview with French magazine So Foot, he said: "I love it when people jeer me. I love to see the hate in their eyes, to hear the insults. It doesn't bother me.
"It's true lots of people hate me but there are even more who love me and who support me. I feel bad only when I play badly. Fortunately, that happens rarely."
He added: "I still have a long way to go. I really want to re-write the history of football.
"I am aware I'm already among the best of the best but I want to continue to write many more beautiful pages."
Ronaldo was outshone by Barcelona's Lionel Messi in last month's Champions League final in Rome, but the Portuguese is not interested in comparing himself to his Argentinian rival.
He said: "I have nothing to envy Lionel for. I don't compare myself to others. I am Cristiano Ronaldo - and I can win more medals than anybody else. I don't like to relax. The fans want to see a great Cristiano Ronaldo so I try to never disappoint."
Former Real Madrid great Zinedine Zidane has warned Ronaldo he will have to come to terms with being just another player at the Bernabeu.
The 1998 World Cup winner moved from Juventus to Madrid in 2001 and went on to win the Primera Division title and Champions League with the Spanish giants.
Zidane said: "Despite the vast amount of money available in his transfer to Real Madrid, Ronaldo will have to come to terms with being just another star at the club.
"With the arrival of Brazilian Kaka and more expected to follow under returning president Florentino Perez, he cannot expect to take centre stage at a club like Real Madrid.
"Besides, while the supporters love to embrace superstar players, collective success is far more important to them than that of any individual."
Zidane claims Ronaldo's will have to cope with pressure which will come with his world record transfer fee.
He added: "As is always the case when a player movers for vast amounts of money the expectations are enormous. I know that from my own experience. You are burdened with it even though you have nothing to do with a fee agreed between two clubs."
And the Frenchman believes Manchester United's decision to sell Ronaldo could prove a wise one.
He said: "Yes Manchester United are losing one of the top three players in the world, but with the money they are getting they can actually end up having a stronger and more balanced squad.
"If they invest the money well - which I am sure they will - then I can see them being better than last season."