In psychological thermodynamics, Theodor Lipps (1851-1914) was a German psychologist noted for his 1903 textbook Guide to Psychology, in which he discusses the concept of “psychic energy” and its possible interactions with the subconscious. [1] His views formed a certain basis for Swiss psychiatrist Carl Jung. [2] His notion of how psychic energy or nervous energy works via mechanism in the subconscious was an inspiration to Austrian psychologist Sigmund Freud in his later work on the subject. [3]

References
1. Bishop, Paul. (1999). Jung in Contexts. (pg. xxiii). Routledge.
2. Jung, Carl. (1928). “On Psychic Energy” (pgs. 15-16), in On the Nature of the Psyche (1960). Princeton University Press.
3. Morreall, John. (1983). Taking Laughter Seriously (pg. 27). SUNY Press.

External links
● Theodor Lipps – Wikipedia.