A DYNAMIC theory, like most theories, begins by begging the question: it defines Progress as the development and economy of Forces. Further, it defines force as anything that does, or helps to do work.
 Henry Adams, The Education of Henry Adams (1906). copy citation

add
Author Henry Adams
Source The Education of Henry Adams
Topic economy development
Date 1906
Language English
Reference
Note
Weblink http://www.gutenberg.org/files/2044/2044-h/2044-h.htm

Context

“Therefore, when the fogs and frosts stopped his slaughter of the centuries, and shut him up again in his garret, he sat down as though he were again a boy at school to shape after his own needs the values of a Dynamic Theory of History.
CHAPTER XXXIII A DYNAMIC THEORY OF HISTORY (1904)
A DYNAMIC theory, like most theories, begins by begging the question: it defines Progress as the development and economy of Forces. Further, it defines force as anything that does, or helps to do work. Man is a force; so is the sun; so is a mathematical point, though without dimensions or known existence.
Man commonly begs the question again taking for granted that he captures the forces. A dynamic theory, assigning attractive force to opposing bodies in proportion to the law of mass, takes for granted that the forces of nature capture man.” source