NEW YORK -- Lenny Kravitz is a man of extremes — as he readily admits.“I am deeply two-sided: black and white, Jewish and Christian, Manhattan and Brooklynite,” he writes about his first 25 years alive in his new memoir “Let Love Rule," released last week and named after his 1989 debut album.“The book is about me finding my voice and finding my path and walking into my destiny, whatever that is,” he tells The Associated Press.The 270-page book written along with David Ritz explores his very