You have exceeded your limit for simultaneous device logins.
Your current subscription allows you to be actively logged in on up to three (3) devices simultaneously. Click on continue below to log out of other sessions and log in on this device.
A summary of this type is overdue, as previous works are dated and less accessible. Niccolò Guicciardini's Reading the Principia and I. Bernard Cohen's guide to the Principia, preceding his and Anne Whitman's translation, accomplish the same goals but with less elegance and simplicity. Highly recommended for all science and mathematics enthusiasts, instructors, and readers.