bestseller list for 39 weeks in the "Advice, How To and Miscellaneous" category, the book teaches that practicing love every day will bring more peace and fulfillment to one's life. Williamson wrote her most famous quote in this book, which is often misattributed to Nelson Mandela: Oprah Winfrey said of the book, "I have never been more moved by a book than I am by this one." Winfrey bought 1,000 copies and encouraged her audience to purchase it, telling them that after reading it, she experienced 157 miracles. Williamson was a frequent guest on The Oprah Winfrey Show as well, and became known as Oprah's "spiritual advisor." Social justice Williamson has said that she often wonders why "so many people in the richest country in the world have to constantly transcend material conditions that are so unnecessary." In the 1980s Williamson began founding charities based on the principles in the Course. Centers for Living In 1987, during lunch with a close friend struggling with breast cancer, Williamson's friend expressed a need for help: "She said that for years she had been looking for someone to help her heal and now she needed someone to help her die." This request inspired Williamson to create the Center for Living. After David Geffen contributed $50,000, Williamson co-founded the organization with Louise Haya minister of the New Thought Church of Religious Science who claimed to have healed herself of canceras a refuge from, and to offer non-medical support for, people with "life-challenging illnesses." Williamson took no salary from the organization. The Center for Living began helping many patients afflicted with HIV/AIDS, particularly gay men, whom it welcomed and accepted when other places shunned them. The Center provided services such as house-cleaning, meditation, massage and community/psychological/emotional support throughout Los Angeles. In 1989, with another $50,000 from Geffen, Williamson opened another Center for Living in New York, but it was hampered by conflict between staff and the board over Williamson's management style, which an unnamed former associate described as "very controlling." There was also a rift because, while the Los Angeles Center welcomed Williamson's use of prayer in her teachings and the use of the word "God", the more secular New York Center rebuked it. Williamson grew frustrated with being asked to not pray: A few months later, after two of her board members told Vanity Fair that she wanted "to be famous", Williamson deemed that