Here are a couple of quotes in which Mozart talks about genius and the work involved in achieving his status.
“Neither a lofty degree of intelligence nor imagination nor both together go to the making of genius. Love, love, love, that is the soul of genius.”
Mozart loved music, he wasn’t just a spoiled brat, as he has been portrayed at times.
“It is a mistake to think that the practice of my art has become easy to me. I assure you, dear friend, no one has given so much care to the study of composition as I. There is scarcely a famous master in music whose works I have not frequently and diligently studied.”
As explained in that last quote, Mozart worked tirelessly at his craft. One cannot achieve what he did without hard work!
To learn more about Mozart, watch the documentary Mozart Decoded.