Explain the fundamental problem with the thesis of psychological hedonism.

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1. FUNDAMENTAL PROBLEM WITH THE THESIS OF PSYCHOLOGICAL HEDONISM.
Hedonism refers to a theory which stated that individual behavior can be determined by desire. The primary intention of a desire is no decrease the pain and increase pleasure. As pleasure and pain, are completely subjective matters, therefore, a thesis of psychological hedonism has attracted a lot of controversies. According to various studies, psychological hedonism is logically distinct from the actual claim (Moore, p. 16).
The term...