Much like John Locke's two treatises, this work is an answer to Filmers "Patriarcha" but is a much more in-depth, studious, and even radical effort. After all, Charles II had him executed for treason for a few pages of it. For a fuller, deeper understanding of the minds of whigs and early American political thinkers, and the foundations of the US Constitution itself, and the English civil war, this book is essential reading.