1949 Every force in nature works along definite logical lines, in accord with certain principles. These forces will work for anyone who possesses the key to their use, just as Aladdin’s fabled Genie would respond to the call of anyone who rubbed the magic lamp. They can be neglected and allowed to lie idle, they can be used for good or evil, but the laws themselves do not change. The forces of nature have always been there, ready for our use. It is our understanding of them that has changed, our knowledge of how to use them.