Problem: Background: Abu al-'Ala` al-Ma'arri (Arabic 'bw l`l lm`ry Abu al-'Ala` al-Ma'arri, full name 'bw l`l 'Hmd bn `bd llh bn slymn ltnwkhy lm`ry Abu al-'Ala` Ahmad ibn 'Abd Allah ibn Sulaiman al-Tanuhi al-Ma'arri; December 973 - May 1057) was a blind Arab philosopher, poet, and writer. Al-Ma'arri held and expressed an irreligious world view which was met with controversy, but in spite of it, he is regarded as one of the greatest classical Arabic poets.
Context: Abu al-'Ala` was born in Ma'arra, modern Maarrat al-Nu'man, Syria, near the city of Aleppo, in December 973. At his time, the city was part of the Abbasid Caliphate, the third Islamic caliphate, and was during the Golden Age of Islam. He was a member of the Banu Sulayman, a notable family of Ma'arra, belonging to the larger Tanukh tribe. One of his ancestors was probably the first qadi of Ma'arra. The Tanukh tribe had formed part of the aristocracy in Syria for hundreds of years and some members of the Banu Sulayman had also been noted as good poets.  He lost his eyesight at the age of four due to smallpox. His later pessimism may be explained by his virtual blindness. Later in his life, he regarded himself as "a double prisoner" which referred to both this blindness and the general isolation that he felt during his life.  He started his career as a poet at an early age, at about 11 or 12 years old. He was educated at first in Ma'arra and Aleppo, later also in Antioch and other Syrian cities. Among his teachers in Aleppo were companions from the circle of Ibn Khalawayh. This grammarian and Islamic scholar had died in 980 CE when al-Ma'arri was still a child. Al-Ma'arri nevertheless laments the loss of Ibn Khalawayh in strong terms in a poem of his Risalat al-ghufran. Al-Qifti reports that when on his way to Tripoli, al-Ma'arri visited a Christian monastery near Latakia where he listened to debates about Hellenistic philosophy, which planted in him the seeds of his later scepticism and irreligiosity; but other historians such as Ibn al-Adim deny that he had been exposed to any theology other than Islamic doctrine.  In 1004-5 al-Ma'arri learned that his father had died and, in reaction, wrote an elegy where he praised his father. Years later he would travel to Baghdad where he became well received in the literary salons of the time, though he was a controversial figure. After the eighteen months in Baghdad, al-Ma'arri returned home for unknown reasons. He may have returned because his mother was ill, or he may have run out of money in Baghdad, as he refused to sell his works. He returned to his native town of Ma'arra in about 1010 and learned that his mother had died before his arrival.  He remained in Ma'arra for the rest of his life, where he opted for an ascetic lifestyle, refusing to sell his poems, living in seclusion and observing a strict vegetarian diet. His personal confinement to his house was only broken one time when violence had struck his town. Though he was confined, he lived out his later years continuing his work and collaborating with others. He enjoyed great respect and attracted many students locally, as well as actively holding correspondence with scholars abroad. Despite his intentions of living a secluded lifestyle, in his seventies, he became rich and was the most revered person in his area. Al-Ma'arri never married and died in May 1057 in his home town.
Question: What did he study?
Answer: He started his career as a poet at an early age, at

Background: Muhammad Ali (; born Cassius Marcellus Clay Jr.; January 17, 1942 - June 3, 2016) was an American professional boxer and activist. He is widely regarded as one of the most significant and celebrated sports figures of the 20th century. From early in his career, Ali was known as an inspiring, controversial, and polarizing figure both inside and outside the ring. Cassius Clay was born and raised in Louisville, Kentucky, and began training as an amateur boxer when he was 12 years old.
Context: Cassius Marcellus Clay Jr. () was born on January 17, 1942, in Louisville, Kentucky. He had a sister and four brothers. He was named for his father, Cassius Marcellus Clay Sr. (1912-1990), who himself was named in honor of the 19th-century Republican politician and staunch abolitionist, Cassius Marcellus Clay, also from the state of Kentucky. Clay's father's paternal grandparents were John Clay and Sallie Anne Clay; Clay's sister Eva claimed that Sallie was a native of Madagascar. He was a descendant of slaves of the antebellum South, and was predominantly of African descent, with smaller amounts of Irish and English heritage. His father painted billboards and signs, and his mother, Odessa O'Grady Clay (1917-1994), was a domestic helper. Although Cassius Sr. was a Methodist, he allowed Odessa to bring up both Cassius Jr. and his younger brother Rudolph "Rudy" Clay (later renamed Rahman Ali) as Baptists. Cassius Jr. attended Central High School in Louisville.  Clay grew up amid racial segregation. His mother recalled one occasion when he was denied a drink of water at a store--"They wouldn't give him one because of his color. That really affected him." He was also affected by the 1955 murder of Emmett Till, which led to young Clay and a friend's taking out their frustration by vandalizing a local railyard.  Clay was first directed toward boxing by Louisville police officer and boxing coach Joe E. Martin, who encountered the 12-year-old fuming over a thief's having taken his bicycle. He told the officer he was going to "whup" the thief. The officer told Clay he had better learn how to box first. Initially, Clay did not take up Martin's offer, but after seeing amateur boxers on a local television boxing program called Tomorrow's Champions, Clay was interested in the prospect of fighting. He then began to work with trainer Fred Stoner, whom he credits with giving him the "real training", eventually moulding "my style, my stamina and my system". For the last four years of Clay's amateur career he was trained by boxing cutman Chuck Bodak.  Clay made his amateur boxing debut in 1954 against local amateur boxer Ronnie O'Keefe. He won by split decision. He went on to win six Kentucky Golden Gloves titles, two national Golden Gloves titles, an Amateur Athletic Union national title, and the Light Heavyweight gold medal in the 1960 Summer Olympics in Rome. Clay's amateur record was 100 wins with five losses. Ali said in his 1975 autobiography that shortly after his return from the Rome Olympics, he threw his gold medal into the Ohio River after he and a friend were refused service at a "whites-only" restaurant and fought with a white gang. The story was later disputed, and several of Ali's friends, including Bundini Brown and photographer Howard Bingham, denied it. Brown told Sports Illustrated writer Mark Kram, "Honkies sure bought into that one!" Thomas Hauser's biography of Ali stated that Ali was refused service at the diner but that he lost his medal a year after he won it. Ali received a replacement medal at a basketball intermission during the 1996 Olympics in Atlanta, where he lit the torch to start the games.
Question: where did he train
Answer:
He then began to work with trainer Fred Stoner,