"As in Bodies there is a Principle of Gravity or Attraction, whereby in Vacuo, they tend to one another, and would unite, according to certain Laws and Limitations established by the Author of Nature: So there is an Analogous Principle in Spirits, whereby they would as certainly, in their proper Vacuity, be attracted by, tend to, and unite with one another, and their first Author, Centre, and the Rock out of which they were hewn (to use a Scripture Phrase) as the Planets would to one another, and to the Sun."
An Essay of Health and Long Life
Cheyne, George. <u>An Essay of Health and Long Life</u> (London: George Strahan, 1724). &lt;<a href="http://books.google.com/books?id=5wIAAAAAQAAJ">Link to Google Books</a>&gt;