Sir Paul McCartney has vowed to keep making music - claiming the joy it brings him cancels out all the pain in his life. The former Beatle confesses he has used songwriting to help him get over his greatest sadnesses; the Fab Four splitting; the death of his first wife Linda; and his split from Heather Mills. The 64-year-old says, "I always feel like there are so many more songs to write. I have never thought about quitting, not really. I mean maybe in very difficult times of my life when I feel pressured just by life, but never by music, never by what I do. "I am going through a divorce at the moment... that is a big pressure. And when The Beatles were splitting up, that was a big pressure. So there are times when I feel very pressured by life, but music is the good side, music is the saviour."