After his recovery, and despite his antipathy towards academic teaching, he took the higher-level admission exams at the Academy of Fine Arts in Antwerp, and in January 1886 matriculated in painting and drawing. He became ill and run down by overwork, poor diet and excessive smoking. He started to attend drawing classes after plaster models at the Antwerp Academy on 18 January 1886. He quickly got into trouble with Charles Verlat, the director of the Academy and teacher of a painting class, because of his unconventional painting style. Van Gogh had also clashed with the instructor of the drawing class Franz Vinck. Van Gogh finally started to attend the drawing classes after antique plaster models given by Eugène Siberdt. Soon Siberdt and Van Gogh came into conflict when the latter did not comply with Siberdt's requirement that drawings express the contour and concentrate on the line. When Van Gogh was required to draw the Venus of Milo during a drawing class, he produced the limbless, naked torso of a Flemish peasant woman. Siberdt regarded this as defiance against his artistic guidance and made corrections to Van Gogh's drawing with his crayon so vigorously that he tore the paper. Van Gogh then flew into a violent rage and shouted at Siberdt: 'You clearly do not know what a young woman is like, God damn it! A woman must have hips, buttocks, a pelvis in which she can carry a baby!' According to some accounts this was the last time Van Gogh attended classes at the Academy and he left later for Paris. On 31 March 1886, which was about a month after the confrontation with Siberdt, the teachers of the Academy decided that 17 students, including Van Gogh, had to repeat a year. The story that Van Gogh was expelled from the Academy by Siberdt is therefore unfounded.
Theo kept all of Vincent's letters to him; Vincent kept few of the letters he received. After both had died, Theo's widow Johanna arranged for the publication of some of their letters. A few appeared in 1906 and 1913; the majority were published in 1914. Vincent's letters are eloquent and expressive and have been described as having a "diary-like intimacy", and read in parts like autobiography. The translator Arnold Pomerans wrote that their publication adds a "fresh dimension to the understanding of Van Gogh's artistic achievement, an understanding granted us by virtually no other painter".
During this period Van Gogh mastered the use of light by subjugating shadows and painting the trees as if they are the source of light – almost in a sacred manner. Early the following year he painted another smaller group of orchards, including View of Arles, Flowering Orchards. Van Gogh was enthralled by the landscape and vegetation of the south of France, and often visited the farm gardens near Arles. In the vivid light of the Mediterranean climate his palette significantly brightened.
Van Dyke left high school in 1944, his senior year, intending to join the United States Army Air Forces for pilot training during World War II. Denied enlistment several times for being underweight, he was eventually accepted for service as a radio announcer before transferring to the Special Services and entertaining troops in the continental United States. He received his high school diploma in 2004 at the age of 78.