Article continues below advertisementPauline Collins spent her final years fighting Parkinson's disease in private - a battle those closest to her say she faced "with quiet strength and extraordinary grace."The Oscar-winning star of Shirley Valentine kept her diagnosis secret for nearly a decade, determined the world would remember her not for her illness, but for her work, insiders say.Collins, who recently died at the age of 85 in her London care home, had long refused to reveal her condition publicly, fearing sympathy might overshadow her lifelong devotion to her craft.