His understanding of the possibilities of painting was evolving rapidly; from studying Hals he learned to portray the freshness of a visual impression, while the works of Paolo Veronese and Eugène Delacroix taught him that colour can express something by itself. This led to his enthusiasm for Peter Paul Rubens and inspired his sudden departure for Antwerp, Belgium, where the greatest number of Rubens's works could be seen. The revelation of Rubens's mode of direct notation and of his ability to express a mood by a combination of colours proved decisive in the development of van Gogh's style. Simultaneously, van Gogh discovered Japanese prints and Impressionist painting. All these sources influenced him more than the academic principles taught at the Antwerp Academy, where he was enrolled. His refusal to follow the academy's dictates led to disputes, and after three
months he left precipitately in 1886 to join Theo in Paris. There, still concerned with improving his drawing, van Gogh met Henri de Toulouse-Lautrec, Paul Gauguin, and others who were to play historic roles in modern art.

They opened his eyes to the latest developments in French painting. At the same time, Theo introduced him to Camille Pissarro, Georges Seurat, and other artists of the Impressionist group.
By this time van Gogh was ready for such lessons, and the changes that his painting underwent in Paris between the spring of 1886 and February 1888 led to the creation of his personal idiom and style of brushwork. His palette at last became colourful, his vision less traditional, and his tonalities lighter, as may be seen in his first paintings of Montmartre. By the summer of 1887 he was painting in pure colours and using broken brushwork that is at times pointillistic. Finally, by the beginning of 1888, van Gogh's Post-Impressionist style had crystallized, resulting in such masterpieces as Portrait of Père Tanguy and Self-Portrait in Front of an Easel, as well as in some landscapes of the Parisian suburbs.

After two years van Gogh was tired of city life, physically exhausted, and longing “to look at nature under a brighter sky.” His passion was now for “a full effect of colour.” He left Paris in February 1888 for Arles, in southeastern France. The pictures he created over the following 12 months—depicting blossoming fruit trees, views of the town and surroundings, self-portraits, portraits of Roulin the postman and other friends, interiors and exteriors of the house, sunflowers, and landscapes—marked his first great period. In these works he strove to respect the external, visual aspect of a figure or landscape but found himself unable to suppress his own feelings about the subject, which found expression in emphatic contours and heightened effects of colour. Once hesitant to diverge from the traditional techniques of painting he worked so hard to master, he now gave free rein to his individuality and began squeezing his tubes of oil paint directly on the canvas.
Van Gogh's style was spontaneous and instinctive, for he worked with great speed and intensity, determined to capture an effect or a mood while it possessed him. “When anyone says that such and such [painting] is done too quickly,” he told his brother, “you can reply that they have looked at it too fast.”

Van Gogh knew that his approach to painting was individualistic, but he also knew that some tasks are beyond the power of isolated individuals to accomplish. In Paris he had hoped to form a separate Impressionist group with Gauguin, Toulouse-Lautrec, and others whom he believed had similar aims. He rented and decorated a house in Arles with the intention of persuading them to join him and found a working community called “The Studio of the South.” Gauguin arrived in October 1888, and for two months van Gogh and Gauguin worked together; but, while each influenced the other to some extent, their relations rapidly deteriorated because they had opposing ideas and were temperamentally incompatible.
Disaster struck on Christmas Eve 1888. Physically and emotionally exhausted, van Gogh snapped under the strain. He argued with Gauguin, reportedly chased him with a razor, and then cut off the lower half of his own left ear. A sensational news story reported that a deranged van Gogh then visited a brothel near his home and delivered the bloody body part to a woman named Rachel, saying, “Guard this object carefully.” Whatever transpired, Gauguin left after the incident, and van Gogh was hospitalized.

Van Gogh returned home a fortnight later and resumed painting, producing a mirror-image Self-Portrait with Pipe and Bandaged Ear, several still lifes, and La Berceuse (“Mme Roulin Rocking a Cradle”). Several weeks later, he again showed symptoms of mental disturbance severe enough to cause him to be sent back to the hospital. At the end of April 1889, fearful of losing his renewed capacity for work, which he regarded as a guarantee of his sanity, he asked to be temporarily shut up in the asylum at Saint-Rémy-de-Provence in order to be under medical supervision.
Van Gogh stayed there for 12 months, haunted by recurrent attacks, alternating between moods of calm and despair, and working intermittently: Garden of the Asylum, Cypresses, Olive Trees, Les Alpilles, portraits of doctors, and interpretations of paintings by Rembrandt, Delacroix, and Millet date from this period. The keynote of this phase (1889–90) is fear of losing touch with reality, as well as a certain sadness. Confined for long periods to his cell or the asylum garden, having no choice of subjects, and realizing that his inspiration depended on direct observation, van Gogh fought against having to work from memory. At Saint-Rémy he muted the vivid, sun-drenched colours of the previous summer and tried to make his painting more calm. As he repressed his excitement, however, he involved himself more imaginatively in the drama of the elements, developing a style based on dynamic forms and a vigorous use of line (he often equated line with colour). The best of his Saint-Rémy pictures are thus bolder and more visionary than those of Arles.

Van Gogh himself brought this period to an end. Oppressed by homesickness—he painted souvenirs of Holland—and loneliness, he longed to see Theo and the north once more and arrived in Paris in May 1890. Four days later he went to stay with a homeopathic doctor-artist, Paul-Ferdinand Gachet, a friend of Pissarro and Paul Cézanne, at Auvers-sur-Oise. Back in a village community such as he had not known since Nuenen, four years earlier, van Gogh worked at first enthusiastically; his choice of subjects such as fields of corn, the river valley, peasants' cottages, the church, and the town hall reflects his spiritual relief. A modification of his style followed: the natural forms in his paintings became less contorted, and in the northern light he adopted cooler, fresh tonalities. His brushwork became broader and more expressive and his vision of nature more lyrical. Everything in these pictures seems to be moving, living. This phase was short, however, and ended in quarrels with Gachet and feelings of guilt at his financial dependence on Theo (now married and with a son) and his inability to succeed.

In despair of ever being able to overcome his loneliness or be cured, van Gogh shot himself. He did not die immediately. When found wounded in his bed, he allegedly said, “I shot myself.…I only hope I haven't botched it.” That evening, when interrogated by the police, van Gogh refused to answer questions, saying, “What I have done is nobody else's business. I am free to do what I like with my own body.” Van Gogh died two days later. Theo, his own health broken, died six months later (January 25, 1891). In 1914 Theo's remains were moved to his brother's grave site, in a little cemetery in Auvers, where today the two brothers lie side by side, with identical tombstones.

Assessment
Largely on the basis of the works of the last three years of his life, van Gogh is generally considered one of the greatest Dutch painters of all time. His work exerted a powerful influence on the development of much modern painting, in particular on the works of the Fauve painters, Chaim Soutine, and the German Expressionists. Yet of the more than 800 oil paintings and 700 drawings that constitute his life's work, he sold only one in his lifetime. Always desperately poor, he was sustained by his faith in the urgency of what he had to communicate and by the generosity of Theo, who believed in him implicitly. The letters that he wrote to Theo from 1872 onward, and to other friends, give such a vivid account of his aims and beliefs, his hopes and disappointments, and his fluctuating physical and mental state that they form a unique and touching biographical record that is also a great human document.

The name of van Gogh was virtually unknown when he killed himself: only one article about him had appeared during his lifetime. He had exhibited a few canvases at the Salon des Indépendants in Paris between 1888 and 1890 and in Brussels in 1890; both salons showed small commemorative groups of his work in 1891. One-man shows of his work did not occur until 1892.
Van Gogh's fame dates from the early years of the 20th century, and since then his reputation has never ceased to grow. A large part of this reputation is based on the image of van Gogh as a struggling genius, working unappreciated in isolation. The dramatic elements of his life—poverty, self-mutilation, mental breakdown, and suicide—feed the drama of this mythology. The notion that his unorthodox talent was unrecognized and rejected by society heightens the legend, as it is just that sort of isolation and struggle that has come to define the modern concept of the artist. This mythical van Gogh has become almost inseparable from his art, inspiring artists to dramatize his saga in poems, novels, films, operas, dance ensembles, orchestral compositions, and a popular song. Wide and diverse audiences have come to appreciate his art, and the record-breaking attendance at exhibitions of his works—as well as the popularity of commercial items featuring imagery from his oeuvre—reveal that, within the span of a century, van Gogh has become perhaps the most recognized painter of all time. The unprecedented prices his works have attained through auction and the attention paid to forgery scandals have only increased van Gogh's stature in the public imagination.

Because the most sensational events of van Gogh's life—the conflicts with Gauguin, the mutilation of his left ear, and the suicide—are thinly documented and layered with apocrypha and anecdote, there is a trend in van Gogh studies to penetrate the layers of myth by reconstructing the known facts of the artist's life. This scholarly analysis has taken many forms. Medical and psychological experts have examined contemporary descriptions of his symptoms and their prescribed treatments in an attempt to diagnose van Gogh's condition (theories suggest epilepsy, schizophrenia, or both). Other scholars have studied evidence of his interaction with colleagues, neighbours, and relatives and have meticulously examined the sites where van Gogh worked and the locales where he lived. In light of van Gogh's continually increasing popularity, scholars have even deconstructed the mythologizing process itself. These investigations shed greater light on the artist and his art and also offer further proof that, more than a century after his death, van Gogh's extraordinary appeal continues to endure and expand.