Simply defined, happiness is the state of being happy. But what exactly does “being happy” mean? Many times, many philosophers and ideologues have proposed ideas about what happiness means and how to achieve it. In this article, I will argue that Aristotle's conception of happiness is more ethically oriented than John Stuart Mill's. First, in examining Mill's unprincipled version of happiness, I will criticize the imperfections of his definition in relation to ethics. Next, I intend to identify Aristotle's core values ​​regarding happiness. According to Aristotle, happiness comes from virtue, while Mill believes that happiness comes from pleasure and the absence of pain. Ethics are the moral principles that govern a person's behavior and are motivated by virtues – good character traits. So, Aristotle focuses on three things, which I will highlight in order to answer the question "What does it mean to live a good life?" » The first of the number one goods in life is happiness. Second, there is a difference between moral virtues and intellectual virtues and finally, leading a good life is a state of character. Personally and widely accepted, happiness is considered a true determining factor in leading a well-intentioned, rational and satisfying life. However, it is important to note how each person achieves their happiness, through the people and experiences necessary to achieve that state of being. As a result, Aristotle's emphasis on happiness presents a more questionable notion of "good morality" and "rational." John Stuart Mill believes in a utilitarian society where people are viewed as “things.” Furthermore, in utilitarianism the objective is "forward-looking", examining the consequences but not the interior...... middle of paper ......g the other consequences and harms of the decision made . In conclusion, Aristotle's elucidation of happiness rests on an ethical foundation because, for him, happiness is coveted solely for happiness's sake. The life of fame and fortune is not the life of Aristotle. Happiness is synonymous with living well. To live well is to live with virtue. Virtue presents humans with an identification with morality, and for Aristotle, we choose to have “good” morality. Aristotle defines humans by nature as being dishonored when they make a bad decision. So, if we choose to act according to pleasure, as John Stuart Mill says, for happiness, we risk choosing the wrong way to do it. Happiness is a choice made rationally among many choices to achieve this state of mind. Happiness should not be a way to ultimately “win,” but a way to develop a reputation for good behavior and principles..