Principle of Utility


  • acting only for pleasure
  • Epicurus thought that the best pleasures in life were the simple things. The party lifestyle was only a short-term pleasure
  • Hedonic Calculus—equation for happiness that includes intensity, duration, certainty, and purity to measure how pleasurable the act is


  • when someone tries to deny themselves pleasure and in the process might bring themselves pain
  • Example from class was religious fasting
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