If you think you're perfect already, then you never will be.

I have practically no private life. I'm already used to this and ready for it. Yes, sometimes it is hard, but it is the choice I made.

Sir Alex has a special place in my life. In fact, he was the main man. I was not famous, I was not a star. I arrived at Old Trafford as just another young talent. He was the one who told me to do all the right things. He gave me the opportunity to play in one of the biggest clubs in the world. So he is one of the most important people in the world for me. I worked with Sir Alex for a few years and I know he deserves ­everything that he has achieved in his career. He works so hard, he is clever, he has experience, he is a human guy.

It gives me the happiest feeling in the world. I just love scoring. It doesn't matter if it's a simple goal from close range, a long shot or a dribble around several players, I just love to score all goals.

Today there are opportunities that no one knows if they will come round again in the future.

I'm aware that, whatever the circumstances, there will always be speculation about me.

I am not a perfectionist, but I like to feel that things are done well. More important than that, I feel an endless need to learn, to improve, to evolve, not only to please the coach and the fans, but also to feel satisfied with myself. It is my conviction that here are no limits to learning, and that it can never stop, no matter what our age.