Barnett Newman, David Hare, and Mark Rothko founded the Subjects of the Artist School at 35 East 8th Street. Well attended lectures were open to the public with speakers such as Jean Arp, John Cage and Ad Reinhardt. The school failed financially and closed in the spring of 1949. Throughout the 1950s Motherwell taught painting at Hunter College in New York and at Black Mountain College in North Carolina. Cy Twombly, Robert Rauschenberg and Kenneth Noland studied under and were influenced by Motherwell. At this time, he was a prolific writer and lecturer, and in addition to directing the influential Documents of Modern Art Series, he edited The Dada Painters and Poets: An Anthology, which was published in 1951. From 1954 to 1958, during the break-up of his second marriage, he worked on a small series of paintings which incorporated the words Je t'aime, expressing his most intimate and private feelings. His collages began to incorporate material from his studio such as cigarette packets and labels, becoming records of his daily life. He was married for the third time, from 1958 to 1971, to fellow abstract painter Helen Frankenthaler. Because Frankenthaler and Motherwell were both born into wealth and known to host lavish parties, the pair were known as "the golden couple". Mature years In 1958–59, Motherwell was included in "The New American Painting" exhibition, initiated by the Museum of Modern Art, which traveled across Europe. In 1958 he and Frankenthaler spent a three-month honeymoon in Spain and France, during which he began painting with a new energy that he attributed to her influence. The Two Figures series he made that year shows "the brightening power of Helen's colors" on his work. During the 1960s, Motherwell exhibited widely in both America and Europe and in 1965 he was given a major retrospective exhibition at the Museum of Modern Art; this show subsequently traveled to Amsterdam, London, Brussels, Essen, and Turin. In 1962, Motherwell and Frankenthaler spent the summer at the artists' colony at Provincetown, Massachusetts, where the coastline inspired the Beside the Sea series of 64 paintings, the oil paint splashed with full force imitating the sea crashing on the shore in front of his studio. The 1963 untitled oil on canvas painting in the collection of the Honolulu Museum of Art exemplifies this stage in the artist's career. In 1964, Motherwell created a mural-sized painting entitled Dublin 1916, with