Bolyai Farkas, a complex personality, a scientist with multilateral interests, correspondent of the mathematics department of the Hungarian Academy, spent most of his life in Tîrgu-Mureș. He was a teacher at the local Reformed College – which today bears his name – for over 40 years. He remained in history as one of the most important scientists of Mureș. Bolyai Farkas was born in 1775, in Buia (today in the Sibiu County), in a family of lower aristocracy. He studied at the Reformed College of Aiud where he proved to be excellent at mathematics. He later studied in Jena and Gottingen as private tutor of baron Kemeny Simon of Cluj. During these years he met Gauss, future world famous mathematician, with whom he shared an interest in geometry, and especially the issue of parallels and the demonstration of axiom IX of Euclid. Upon his return to Transylvania, he lived for three years in Cluj at the Kemeny family, where he met his first wife. In 1802 János was born and the family moved to the Bolyai mansion at Domlad. In 1804 Bolyai Farkas was offered the position of mathematics, physics and chemistry teacher at the Reformed College of Tîrgu-Mureș. He was extremely preoccupied with his son”™s education, who proved to be very talented in mathematics, but also for playing the violin.  With great financial effort, Farkas managed to sign his son up to the Technical Military  Academy of Vienna. In 1825, after his wife”™s death, he remarried. This is when the frictions between the two Bolyais started. Their relationship was characterized by periods of harmony and understanding alternating with times of mutual disappointments and arguments. The father scolded his son for neglecting his career as military engineer and for his obsession with the demonstration of the theory of parallels. On the other hand, the son, after spending many years away from Tîrgu-Mureș, did not feel at his ease in his father's home. In 1832 the first book by Bolyai Farkas was published. It was entitled Tentamen and it presented purely mathematical issues from a philosophical perspective. János”™ paper that set the bases of non-Euclidian geometry was published as an appendix to Tentamen. In addition to his constant interest in mathematics, Farkas also approached poetry, playwriting and pedagogy. He wrote studies on educational reform, forestry, as well as plays and poems. He was passionate with mechanics, drew up various projects and built terracotta stoves. He was loyal to the Reformed College for his entire life, and for this reason in 1852 when Emperor Franz Joseph visited Tîrgu-Mureș and the famous college, Farkas was the one to give a speech in his honor. His attachment to the school where he taught for so many years prompted him to donate most of his books and manuscripts to the college, shortly before his death. He also made an important financial and book donation to the Teleki Library. Bolyai Farkas passed away on November 20, 1856 after several fits of apoplexy, during which he was cared for by his students.  He is buried in the reformed cemetery of Tîrgu-Mureș. Bibliography: Tiberiu Weszely, Bolyai Farkas-Omul și matematicianul, București, Ed. științifică, 1974, pp. 12-26. L. Kocziány- Cei doi Bolyai în vol. Profiluri mureșene, vol. I, Tîrgu-Mureș, 1971.