The idea of want can be examined from many perspectives. In secular societies want might be considered similar to the emotion desire, which can be studied scientifically through the disciplines of psychology or sociology. Want might also be examined in economics as a necessary ingredient in sustaining and perpetuating capitalist societies that are organised around principles like consumerism. Alternatively want can be studied in a non-secular, spiritual, moralistic or religious way, particularly by Buddhism but also Christianity, Islam and Judaism.

In economics, a want is something that is desired. It is said that every person has unlimited wants, but limited resources. Thus, people cannot have everything they want and must look for the most affordable alternatives.

Wants are often distinguished from needs. A need is something that is necessary for survival (such as food and shelter), whereas a want is simply something that a person would like to have. Some economists have rejected this distinction and maintain that all of these are simply wants, with varying levels of importance. By this viewpoint, wants and needs can be understood as examples of the overall concept of demand.

Christopher Eric Hitchens (13 April 1949 – 15 December 2011) was an English American author and journalist whose career spanned more than four decades. Hitchens, often referred to colloquially as "Hitch", was a columnist and literary critic for New Statesman, The Atlantic, The Nation, The Daily Mirror, The Times Literary Supplement and Vanity Fair. He was an author of twelve books and five collections of essays. As a staple of talk shows and lecture circuits, he was a prominent public intellectual, and his confrontational style of debate made him both a lauded and controversial figure.

Hitchens was known for his admiration of George Orwell, Thomas Paine and Thomas Jefferson, as well as for his excoriating critiques of various public figures including Mother Teresa, Bill Clinton, Henry Kissinger and Diana, Princess of Wales. Although he supported the Falklands War, his key split from the established political left began in 1989 after what he called the "tepid reaction" of the Western left to the Rushdie Affair. The September 11 attacks strengthened his internationalist embrace of an interventionist foreign policy, and his vociferous criticism of what he called "fascism with an Islamic face." His numerous editorials in support of the Iraq War caused some to label him a neoconservative, although Hitchens insisted he was not "a conservative of any kind", and his friend Ian McEwan describes him as representing the anti-totalitarian left.

Keira Christina Knightley ( /ˌkɪərə ˈnaɪtli/; born 26 March 1985) is an English actress and model. She began acting as a child and came to international notice in 2002 after co-starring in the film Bend It Like Beckham. From 2003, her appearances in the Pirates of the Caribbean film series took her to much greater prominence. In 2008, Forbes claimed Knightley to be the second highest paid actress in Hollywood, having reportedly earned $32 million in 2007, making her the only non-American on the list of highest paid actresses.

Knightley has appeared in several Hollywood films and earned nominations for the Academy Award for Best Actress and Golden Globe Award for Best Actress for her role as Elizabeth Bennet in Joe Wright's 2005 adaptation of Jane Austen's novel Pride and Prejudice. Two years later she again was nominated for the Golden Globe Award for Best Actress, as well as the BAFTA Award for Best Actress in a Leading Role for her performance in Atonement.

Knightley was born in Teddington, London, England, the daughter of Sharman MacDonald, an award-winning playwright, and Will Knightley, a theatre and television actor. Her father is English and her Scottish mother is of half Welsh ancestry. She has an elder brother, Caleb.^{[citation needed]}