Answer the question at the end by quoting:

Rene Descartes (; French: [R@ne dekaRt]; Latinized: Renatus Cartesius; adjectival form: "Cartesian"; 31 March 1596 - 11 February 1650) was a French philosopher, mathematician, and scientist. Dubbed the father of modern western philosophy, much of subsequent Western philosophy is a response to his writings, which are studied closely to this day. A native of the Kingdom of France, he spent about 20 years (1629-49) of his life in the Dutch Republic after serving for a while in the Dutch States Army of Maurice of Nassau, Prince of Orange and the Stadtholder of the United Provinces. He is generally considered one of the most notable intellectual representatives of the Dutch Golden Age.
In The Passions of the Soul written between 1645 and 1646 Descartes discussed the common contemporary belief that the human body contained animal spirits. These animal spirits were believed to be light and roaming fluids circulating rapidly around the nervous system between the brain and the muscles, and served as a metaphor for feelings, like being in high or bad spirit. These animal spirits were believed to affect the human soul, or passions of the soul. Descartes distinguished six basic passions: wonder, love, hatred, desire, joy and sadness. All of these passions, he argued, represented different combinations of the original spirit, and influenced the soul to will or want certain actions. He argued, for example, that fear is a passion that moves the soul to generate a response in the body. In line with his dualist teachings on the separation between the soul and the body, he hypothesized that some part of the brain served as a connector between the soul and the body and singled out the pineal gland as connector. Descartes argued that signals passed from the ear and the eye to the pineal gland, through animal spirits. Thus different motions in the gland cause various animal spirits. He argued that these motions in the pineal gland are based on God's will and that humans are supposed to want and like things that are useful to them. But he also argued that that the animal spirits that moved around the body could distort the commands from the pineal gland, thus humans had to learn how to control their passions. Descartes advanced a theory on automatic bodily reactions to external events which influenced 19th century reflex theory. He argued that external motions such as touch and sound reach the endings of the nerves and affect the animal spirits. Heat from fire affects a spot on the skin and sets in motion a chain of reactions, with the animal spirits reaching the brain through the central nervous system, and in turn animal spirits are sent back to the muscles to move the hand away from the fire. Through this chain of reactions the automatic reactions of the body do not require a thought process. Above all he was among the first scientists who believed that the soul should be subject to scientific investigation. He challenged the views of his contemporaries that the soul was divine, thus religious authorities regarded his books as dangerous. Descartes' writings went on to form the basis for theories on emotions and how cognitive evaluations were translated into affective processes. Descartes believed that the brain resembled a working machine and unlike many of his contemporaries believed that mathematics and mechanics could explain the most complicated processes of the mind. In the 20th century Alan Turing advanced computer science based on mathematical biology as inspired by Descartes. His theories on reflexes also served as the foundation for advanced physiological theories more than 200 years after his death. The Nobel Prize winning physiologist Ivan Pavlov was a great admirer of Descartes.

Did he say anything about love?

Answer the question at the end by quoting:

Groening was born on February 15, 1954 in Portland, Oregon, the middle of five children (older brother Mark and sister Patty were born in 1950 and 1952, while the younger sisters Lisa and Maggie in 1956 and 1958, respectively). His Norwegian American mother, Margaret Ruth (nee Wiggum; March 23, 1919 - April 22, 2013), was once a teacher, and his German Canadian father, Homer Philip Groening (December 30, 1919 - March 15, 1996), was a filmmaker, advertiser, writer and cartoonist. Homer, born in Main Centre, Saskatchewan, Canada, grew up in a Mennonite, Plautdietsch-speaking family.
Groening described life in Los Angeles to his friends in the form of the self-published comic book Life in Hell, which was loosely inspired by the chapter "How to Go to Hell" in Walter Kaufmann's book Critique of Religion and Philosophy. Groening distributed the comic book in the book corner of Licorice Pizza, a record store in which he worked. He made his first professional cartoon sale to the avant-garde Wet magazine in 1978. The strip, titled "Forbidden Words," appeared in the September/October issue of that year. Groening had gained employment at the Los Angeles Reader, a newly formed alternative newspaper, delivering papers, typesetting, editing and answering phones. He showed his cartoons to the editor, James Vowell, who was impressed and eventually gave him a spot in the paper. Life in Hell made its official debut as a comic strip in the Reader on April 25, 1980. Vowell also gave Groening his own weekly music column, "Sound Mix," in 1982. However, the column would rarely actually be about music, as he would often write about his "various enthusiasms, obsessions, pet peeves and problems" instead. In an effort to add more music to the column, he "just made stuff up," concocting and reviewing fictional bands and nonexistent records. In the following week's column, he would confess to fabricating everything in the previous column and swear that everything in the new column was true. Eventually, he was finally asked to give up the "music" column. Among the fans of the column was Harry Shearer, who would later become a voice on The Simpsons. Life in Hell became popular almost immediately. In November 1984, Deborah Caplan, Groening's then-girlfriend and co-worker at the Reader, offered to publish "Love is Hell", a series of relationship-themed Life in Hell strips, in book form. Released a month later, the book was an underground success, selling 22,000 copies in its first two printings. Work is Hell soon followed, also published by Caplan. Soon afterward, Caplan and Groening left and put together the Life in Hell Co., which handled merchandising for Life in Hell. Groening also started Acme Features Syndicate, which syndicated Life in Hell, Lynda Barry and John Callahan, but now only syndicates Life in Hell. At the end of its run, Life in Hell was carried in 250 weekly newspapers and has been anthologized in a series of books, including School is Hell, Childhood is Hell, The Big Book of Hell, and The Huge Book of Hell. Although Groening has stated, "I'll never give up the comic strip. It's my foundation," he announced that the June 16, 2012 strip would mark Life in Hell's conclusion. After Groening ended the strip, the Center for Cartoon Studies commissioned a poster that was presented to Groening in honor of his work. The poster contained tribute cartoons by 22 of Groening's cartoonist friends who were influenced by Life in Hell.

Which book is that?
"Love is Hell", a series of relationship-themed Life in Hell strips, in book form. Released a month later, the book was an underground success,