In quotes, human chemistry quotes are various notable quotation statements related generally to the application of basic chemistry rules and laws to human relationships. Some of these are listed below, chronologically:

Year
Quote
person




c.1818 “We should be surprised that a matter that generally plays such an important part in the life of man has hitherto been almost entirely disregarded by philosophers, and lies before us as raw and untreated material.” Arthur Schopenhauer 75 Arthur Schopenhauer (1788-1860)
German philosopher,
The World as Will and Idea
[1]




1821 “Where there is no love, a person’s faithfulness to the marriage bond is probably against nature.”

“If a relationship is perfectly natural there will be a complete fusion of the happiness of both of you—owing to fellow-feeling and various other laws which govern our natures, this is, quite simply, the greatest happiness that can exist.”

“To find love in Paris you must go down among those classes where the absence of education and of vanity, and the struggle for bare necessities, have allowed more energy to survive.”
Stendhal 75Stendhal (1783-1842)
French writer
On Love




1913 “Students of the problem of the greatest sensation in the world, are trying to explain love on purely chemical principles. They say that the sight of the beloved or to-be-loved object excites a chemical reaction in the lover, starts up a kind of fermentation, which can be soothed or neutralized only by the presence or possession of the beloved object.”
William Robinson (1913)
American physician? [2]




1920 “Love is in its ultimate analysis nothing but a chemical reaction.”
Anon scientist (c.1920)
Quoted by Frederick Bennett [3]




1933 “The meeting of two personalities is like the contact of two chemical substances; if there is any reaction, both are transformed.” Jung 75Carl Jung (1875-1961)
Swill psychologist
Modern Man in Search of Soul




1939 “Love is a romantic designation for a most ordinary biological process—or, shall we say, chemical—process … a lot of nonsense is talked and written about it.” Greta Garbo 75Greta Garbo (1905-1990)
Swedish actress
Ninotchka




1959 “Love isn’t an opinion, it’s a chemical reaction.” Tony Randall 75Tony Randall (1920-2004) American actor
Pillow Talk




2000 “I miss her smell, and the way she tastes. It’s a mystery of human chemistry and I don’t understand it, some people, as far as their senses are concerned, just feel like home.” John Cusack 75John Cusack (1966-)
American actor
High Fidelity

References
1. (a) Schopenhauer, Arthur. (1818). The World and Will and Representation, Volume 2 (pg. 532); second expanded edition, 1844. Publisher.
(b) Sex and Schopenhauer – Flatrock.org.
(c) The World as Will and Representation – Wikipedia.
2. Robinson, William. (1913). Stories of Love and Live (pg. 129). The Critique and Guide Co.
3. Bennett, Frederick M. (1922). “Is Spirit a Chemical Reaction?”, The Personalist (pgs. 106-11), Vol. 3-4. School of Philosophy, University of Southern California.

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