
Stoicism is a school of
Hellenistic philosophy
Hellenistic philosophy is a time-frame for Western philosophy and Ancient Greek philosophy corresponding to the Hellenistic period. It is purely external and encompasses disparate intellectual content. There is no single philosophical school or cu ...
founded by
Zeno of Citium in
Athens in the early 3rd century
BCE. It is a philosophy of personal
virtue ethics informed by its system of
logic and its views on the natural world, asserting that the practice of virtue is both necessary and sufficient to achieve
(happiness, ): one flourishes by living an
ethical life. The Stoics identified the path to with a life spent practicing the
cardinal virtues and living in accordance with nature.
The Stoics are especially known for teaching that "
virtue is the only good" for human beings, and that external things, such as health, wealth, and pleasure, are not good or called in themselves (''
adiaphora'') but have value as "material for virtue to act upon". Alongside
Aristotelian ethics
Aristotle first used the term ''ethics'' to name a field of study developed by his predecessors Socrates and Plato. In philosophy, ethics is the attempt to offer a rational response to the question of how humans should best live. Aristotle regarded ...
, the Stoic tradition forms one of the major founding approaches to
virtue ethics. The Stoics also held that certain destructive emotions resulted from errors of judgment, and they believed people should aim to maintain a will (called ''
prohairesis'') that is "in accordance with
nature". Because of this, the Stoics thought the best indication of an individual's philosophy was not what a person said but how a person behaved. To live a good life, one had to understand the rules of the natural order since they thought everything was rooted in nature.
Many Stoics—such as
Seneca and
Epictetus—emphasized that because "virtue is sufficient for
happiness", a