In other words, while the acting needed to look and feel natural, as an art form, it still needed to have an aestheticism to it. .
Lee Strasberg was inspired to devote his life to the theatre after attending a performance given by the MAT while it was in Manhattan on tour. He was impressed with the natural performances he had seen. When he discovered that one of Stanislavski's actors, Richard Boleslavsky, had stayed on in New York, Strasberg began to study with him. Because Boleslavsky, who particularly favoured the emotional work, left Stanislavski at the height of Stanislavski's interest in emotional psychology, Strasberg was presented with a prejudiced, slightly inaccurate view of Stanislavski's system. Strasberg responded very well to the ideas he learned from Boleslavsky, and, with another Boleslavsky student, Harold Clurman, founded the Group Theatre in 1931 in order to create a "truly American theater". The Group Theatre "specialised in grittily realistic, socially orientated drama" (Counsell 1996: 52). This resulted in an intentional opposition to the conventional theatre. Specifically, there was actual rebellion against the mannered style found on both the British and American stages. This led to the idea that actors should not keep aesthetics in mind when creating their performance because it stifled truth. Since Strasberg was continuing on with concepts presented to him by Boleslavsky, he believed that he was working with and teaching Stanislavski's concepts. However, this avoidance of keeping the performance beautiful and artistic actually went against what Stanislavski had said.
One other concept that Stanislavski's system discussed was "choosing homogenous behavioural codes based upon their own illusory unity, and eradicating discordant elements according to the logic of the through-line of action" (Counsell 1996: 58). Finding the through-line of action helped the actor create an emotionally connected performance allowing each emotion to lead smoothly to the next emotion.