Wallace Delois Wattles was an American author. A New Thought writer, he remains personally somewhat obscure, but his writing has been widely quoted and remains in print in the New Thought and self-help movements. Wattles' best known work is a 1910 book called The Science of Getting Rich in which he explained how to become wealthy. He studied the writings of Georg Wilhelm Friedrich Hegel and Ralph Waldo Emerson and recommended the study of their books to his readers who wished to understand what he characterized as "the monistic theory of the cosmos". Through his personal study and experimentation Wattles claimed to have discovered the truth of New Thought principles and put them into practice in his own life. He wrote books outlining these principles and practices, giving them titles that described their content, such as Health Through New Thought and Fasting and The Science of Being Great. His daughter Florence recalled that "he lived every page" of his books.