Emanuel Swedenborg's magnum opus, The Principia, is one of the most influential works in the history of science and philosophy, laying the foundation for a new way of thinking about the natural world. Compiled after years of spiritual contemplation and scientific study, this work offers a comprehensive explanation of the principles that govern all of creation, from the smallest subatomic particles to the vast reaches of the cosmos. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.