Ergosophy is a term coined by the scientist Frederick Soddy

Frederick Soddy

Frederick Soddy was an English radiochemist who explained, with Ernest Rutherford, that radioactivity is due to the transmutation of elements, now known to involve nuclear reactions. He also proved the existence of isotopes of certain radioactive elements...

, in the early 1920s, and refers to aspects of energy

Energy

In physics, energy is an indirectly observed quantity. It is often understood as the ability a physical system has to do work on other physical systems...

 in relation to human existence and energy measurement as in (Erg

Erg

An erg is the unit of energy and mechanical work in the centimetre-gram-second system of units, symbol "erg". Its name is derived from the Greek ergon, meaning "work"....

s). Soddy's aim was to apply science theories and ideas and move the human understanding of work beyond the restrictions of management theory into a new theory of energy economics

Energy economics

Energy economics is a broad scientific subject area which includes topics related to supply and use of energy in societies. Due to diversity of issues and methods applied and shared with a number of academic disciplines, energy economics does not present itself as a self contained academic...

.

Frederick Soddy first used the term in his book on work and economics: The Role of Money.