about the quoted person:

american playwright. O'Neill won the Nobel Prize for literature in 1936, and pulitzer prizes for four of his plays: Beyond the Horizon (1920); Anna Christie (1922); Strange Interlude (1928); and Long Day's Journey Into Night (1957). O'Neill is credited with raising American dramatic theater from its narrow origins to an art form respected around the world. He is regarded as America's premier playwright.

O'Neill's career as a playwright consisted of three periods. His early realist plays utilize his own experiences, especially as a seaman. In the 1920s he rejected realism in an effort to capture on the stage the forces behind human life. His expressionistic plays during this period were influenced by the ideas of friedrich nietzsche, psychologists sigmund freud and Carl Jung, and Swedish playwright August Strindberg. During his final period O'Neill returned to realism. These later works, which most critics consider his best, depend on his life experiences for their story lines and themes.

A revival of his work in 1956 lead to the first production of Long Day's Journey Into Night, for which he won his final pulizer Prize posthumously in 1957.