
A snippet of a Goethe affinity table (1809), showing that people ordered in terms "affinity" preferences to other people within that person's social sphere, the first historical physiochemical model of "true love"; which is based on what Newton outlined in his "Query 31" (1718); the modern version of which found in the logic of people matched via human free energy tables as discerned by Thims (1995).

A snippet of a Goethe affinity table (1809), showing that people ordered in terms "affinity" preferences to other people within that person's social sphere, the first historical physiochemical model of "true love"; which is based on what Newton outlined in his "Query 31" (1718); the modern version of which found in the logic of people matched via human free energy tables as discerned by Thims (1995).

In terminology, true love refers to love that is the genuine thing.

Overview
In 1809, Goethe, supposedly, alluded to the idea that true love or at least "soul mates" (Ottilie + Edward) could be quantified by affinities. (Ѻ)

In 2007, Libb Thims explained that if the Gibbs energy changes for every person on the planet, at a given time, or state of existence, could be listed on a free energy table, similar to the say Goethe did tables of social affinities for people in his novella, then true love could be quantified and determined; kinetic factors aside. [2]

In 2009, Australian mathematician Clio Cresswell published a theory of the mathematics of love and or sex, claiming that singles can increase their chances of finding true love by rejecting at least 12 potential partners before settling down. [3]

Quotes
The following are related quotes:

“True love is like ghosts, which everybody talks about and few have seen.”
— Francois Rochefoucauld (c.1865)

“True love is a chemical affinity of human monads; they are elementally attracted to one another by the invincible necessity of a law of nature. In the spiritual and physical make-up of those predestined by nature to be joined, a series of inherent correspondences is found.”
— Vyacheslav Ivanov (c.1900), on the “message” of Goethe’s Elective Affinities [1]

“True love is your soul’s recognition of its counterpoint in another.”
— Steve Faber and Bob Fisher (2005), Wedding Crashers (Ѻ)

See also
● Love terminology reform | Henry Bray
● Soul mate

References
1. (a) Ivanov, Vyacheslav. (c.1900). SS, vol. 4, pg. 147.
(b) Wachtel, Michael. (1995). Russian Symbolism and Literary Tradition: Goethe, Novalis, and the Poetics of Vyacheslav Ivanov (Wahlverwandtschaften, pgs. 32-33; human monads, pg. 34). University of Wisconsin Press.
2. Thims, Libb. (2007). Human Chemistry (Volume Two). Morrisville, NC: LuLu.
3. Browne, Rachel. (2009). “The Mathematical Formula for Love”, Stuff.co.nz, Aug 25.

Further reading
● Slater, Lauren. (2006). "True Love", National Geographic, Vol. 209, No. 2, pgs. 32-49, February.