Richard de Fournival or Richart de Fornival (1201 – ?
1260) was a medieval philosopher and trouvère perhaps best known for the "Bestiaire d'amour" ("The Bestiary of Love").
Ioane Petritsi (Georgian: იოანე პეტრიწი ) also referred as John Petritsi was a Georgian Neoplatonist philosopher of the 11th-12th century, active in the Byzantine Empire and Kingdom of Georgia, best known for his translations of Proclus, along with an extensive commentary.
 In later sources, he is also referred to as Ioane Chimchimeli (Georgian: იოანე ჭიმჭიმელი ).
 The Stanford Encyclopedia of Philosophy describes Petritsi as "the most significant Georgian medieval philosopher" and the "most widely read Georgian philosopher."
Love Letters is a 1917 American silent drama film directed by Roy William Neill and written by Ella Stuart Carson and Shannon Fife.
 The film stars Dorothy Dalton, William Conklin, Dorcas Matthews, Thurston Hall, Hayward Mack, and William Hoffman.
 The film was released on December 24, 1917, by Paramount Pictures.
 A print of "Love Letters" is held by the Library of Congress.
Love Letters is a 1999 American made-for-television drama film directed by Stanley Donen and based on the 1988 play by A. R. Gurney.
 Gurney adapted his own work for the telescript, dramatizing scenes and portraying characters that were merely described in the play.
 Donen had envisioned it to be a feature film, but a limited budget restricted him to make a TV movie and he shot the film in only 17 days.
 It is his last film as of 2016.
 "Love Letters" originally premiered on ABC on April 12, 1999.
The Thomas Aquinas Dictionary is a collection of quotations by medieval philosopher and theologian Thomas Aquinas, indexed by keywords contained within the quotations.
 Most of the quotations are taken from the "Summa Theologica", with additional material from the "Summa contra Gentiles".
 The quotations are listed without additional commentary or explanatory notes, although the volume does contain an introduction to the work of Thomas Aquinas written by Theodore E. James.
 Scholarly reviews were critical of the work when it was published, particularly in terms of the selection and arrangement of material.
 The book does, however, still appear in bibliographies of reference material on Thomas Aquinas.
Peter Abelard ( ; Latin: "Petrus Abaelardus" or "Abailardus"; French: "Pierre Abélard" , ] ; 1079 – 21 April 1142) was a medieval French scholastic philosopher, theologian and preeminent logician.
 His love for, and affair with, Héloïse d'Argenteuil have become legendary.
 The "Chambers Biographical Dictionary" describes him as "the keenest thinker and boldest theologian of the 12th Century".
George Asakura (Japanese: ジョージ朝倉 , Hepburn: Jōji Asakura , born May 11, 1974) is a Japanese manga artist.
 She took her pen name from one of the title characters in "Gatchaman" and made her debut in 1995 with "Punky Cake Junkie", which was published in the magazine "Bessatsu Friend DX Juliet".
 She is best known for "A Perfect Day for Love Letters", for which she received the 2005 Kodansha Manga Award for shōjo manga, and "Knock Your Heart Out!"
.
 "A Perfect Day for Love Letters" was adapted as a live-action movie and has been licensed in English by Del Rey Manga.
A Perfect Day for Love Letters (Japanese: 恋文日和 , Hepburn: Koibumi Biyori ) is a Japanese manga short story series written and illustrated by George Asakura.
 Each story depicts a relationship that revolves around the use of love letters.
 The stories were originally published by Kodansha in the "shōjo" (aimed at teenage girls) manga magazine "Bessatsu Friend", and collected in two bound volumes.
 "A Perfect Day for Love Letters" received the Kodansha Manga Award for shōjo manga along with "Oi Piitan!!
" by Risa Itou in 2005.
 A live action film adaptation premiered in Japan on December 4, 2004.
 It was also be adapted into a Japanese television drama in 2014.
Constant Mews (born 1954), D. Phil ("Oxon") is Professor of Medieval Thought and Director, Centre for Studies in Religion and Theology, Monash University, Melbourne.
 He is an authority on medieval religious thought, especially on the medieval philosopher and theologian, Peter Abelard, and on interfaith dialogue.
 He discovered and published what are possibly the original letters exchanged between Peter Abelard and his lover, Heloise.
Douglas Mews (born 1956), is a New Zealand classical organist and harpsichordist.
 He holds the position of City Organist, Wellington, New Zealand.
 He is the brother of Constant Mews.

Question: Which Medieval philosopher was considered the keenest thinker, whoes love letters were published by Constant Mews?    
Answer: Peter Abelard