Eudaimonia in the context of "Virtue ethics"

Stoicism is an ancient Greek and then Roman philosophy of the Hellenistic and Roman Imperial periods. The Stoics believed that the universe operated according to reason, or logos, providing a unified account of the world, constructed from ideals of rational discourse, monistic physics, and naturalistic ethics. These three ideals constitute virtue, which is necessary for the Stoic goal of 'living a well-reasoned life'.

Stoic logic focuses on highly intentional reasoning through propositions, arguments, and the differentiation between truth and falsehood. Philosophical discourse is paramount in Stoicism, including the view that the mind is in rational dialogue with itself. Stoic ethics centers on virtue as the highest good, cultivating emotional self-control, a calm problem-solving state of mind, and rational judgment to attain lifelong flourishing (eudaimonia). At the same time, passions, anxieties, and insecurities are viewed as misguided reactions that ought to be controlled through self-disciplined practice. Of all the schools of ancient Western philosophy, Stoicism made the greatest claim to being utterly systematic.

In ethics, intrinsic value is a property of anything that is valuable on its own. Intrinsic value is in contrast to instrumental value (also known as extrinsic value), which is a property of anything that derives its value from a relation to another intrinsically valuable thing. Intrinsic value is always something that an object has "in itself" or "for its own sake", and is an intrinsic property. An object with intrinsic value may be regarded as an end, or in Kantian terminology, as an end-in-itself.

The term "intrinsic value" is used in axiology, a branch of philosophy that studies value (including both ethics and aesthetics). All major normative ethical theories identify something as being intrinsically valuable. For instance, for a virtue ethicist, eudaimonia (human flourishing, sometimes translated as "happiness") has intrinsic value, whereas things that bring you happiness (such as having a family) may be merely instrumentally valuable. Similarly, consequentialists may identify pleasure, the lack of pain, and/or the fulfillment of one's preferences as having intrinsic value, making actions that produce them merely instrumentally valuable. On the other hand, proponents of deontological ethics argue that morally right actions (those that respect moral duty to others) are always intrinsically valuable, regardless of their consequences.

Aristotle first used the term ethics to name a field of study developed by his predecessors Socrates and Plato which is devoted to the attempt to provide a rational response to the question of how humans should best live. Aristotle regarded ethics and politics as two related but separate fields of study, since ethics examines the good of the individual, while politics examines the good of the city-state, which he considered to be the best type of community.

Aristotle's writings have been read more or less continuously since ancient times, and his ethical treatises in particular continue to influence philosophers working today. Aristotle emphasized the practical importance of developing excellence (virtue) of character (Greek ēthikē aretē), as the way to achieve what is finally more important, excellent conduct (Greek praxis). As Aristotle argues in Book II of the Nicomachean Ethics, the man who possesses character excellence will tend to do the right thing, at the right time, and in the right way. Bravery, and the correct regulation of one's bodily appetites, are examples of character excellence or virtue; so acting bravely and acting temperately are examples of excellent activities. The highest aims are living well, and eudaimonia – a Greek word often translated as well-being, happiness or "human flourishing". Like many ethicists, Aristotle regards excellent activity as pleasurable for the man of virtue. For example, Aristotle thinks that the man whose appetites are in the correct order takes pleasure in acting moderately.

Hegesias (Ancient Greek: Ἡγησίας; fl. 290 BC) of Cyrene was a Cyrenaic philosopher. He argued that eudaimonia (happiness) is impossible to achieve, and that the goal of life should be the avoidance of pain and sorrow. Conventional values such as wealth, poverty, freedom, and slavery are all indifferent and produce no more pleasure than pain. Cicero claims that Hegesias wrote a book called ἀποκαρτερῶν (Death by Starvation), which persuaded so many people that death is more desirable than life that Hegesias was banned from teaching in Alexandria. It has been thought by some that Hegesias was influenced by Buddhist teachings.