Hedonism refers to the prioritization of pleasure in one's lifestyle, actions, or thoughts. The term can include a number of theories or practices across philosophy, art, and psychology, encompassing both sensory pleasure and more intellectual or personal pursuits, but can also be used in everyday parlance as a pejorative for the egoistic pursuit of short-term gratification at the expense of others. The term originates in ethical philosophy, where axiological or value hedonism is the claim that pleasure is the sole form of intrinsic value, while normative or ethical hedonism claims that pursuing pleasure and avoiding pain for oneself or others are the ultimate expressions of ethical good. Applied to well-being or what is good for someone, it is the thesis that pleasure and suffering are the only components of well-being. Psychological or motivational hedonism claims that human behavior is psychologically determined by desires to increase pleasure and to decrease pain. Source: Wikipedia (en)