Wollstonecraft calls for equality between the sexes in particular areas of life, such as morality, but she does not write that men and women are equal in all things. This has made it difficult to classify Wollstonecraft as a modern feminist as they believe men and women are equal in all things. She could not use either the word or the concept of "feminism", because they were only developed later. Today, many people believe that her work was not received well, but this may be wrong. People who believe this also believe that Wollstonecraft was as reviled during her lifetime as she became after the publication of William Godwin's "Memoirs of the Author of A Vindication of the Rights of Woman" (1798). However, the "Rights of Woman" was actually well-received when it was first published in 1792. One biographer has called it "perhaps the most original book of [Wollstonecraft's] century".