In 1880 at the age of 27, he decided to become an artist. He moved around, teaching himself to draw and paint and receiving financial support from Theo. In 1886, Van Gogh joined Theo in Paris, and met many artists including Degas, Toulouse-Lautrec, Pissarro and Gauguin, with whom he became friends. His style changed significantly under the influence of Impressionism, becoming lighter and brighter. He painted a large number of self-portraits in this period. In 1888, Van Gogh moved to Provence in southern France, where he painted his famous series 'Sunflowers'. He invited Gauguin to join him but they soon began to quarrel and one night, Van Gogh threatened Gauguin with a razor. Deeply remorseful he then cut off part of his own ear.