The word techne comes from the Greek word for art, skill, craft, and technique. The modern-day English word technology comes from the prefix techne and the suffix ology; both words are of Greek origin combined to mean "the practical application of knowledge". Techne in Ancient Greece was thought of as dangerous in its virtues by many philosophers, including Plato. Arts such as paintings and sculptures were particularly thought to be unvirtuous because of their "third-hand [representation] of "true" reality and absolute beauty". Other philosophers, such as Aristotle, believed that techne was virtuous because it uses natural materials "to create objects unknown in nature" and therefore it "completes nature".
Aristotle does not use techne and episteme interchangeably as Socrates and Plato did before him. He distinguishes clearly between the two terms. Aristotle includes techne and episteme in his five virtues of intellect: episteme, techne, phronesis, sophia, and nous. In Nicomachean Ethics, Aristotle wrote that techne not only meant craft but also production (for example: the production of a ship). Richard Parry wrote that Aristotle believed techne aims for good and forms an end, which could be the activity itself or a product formed from the activity. Aristotle used health as an example of an end that is produced by the techne of medicine. Like Plato's beliefs about the importance of a practitioner being able to explain their craft, Aristotle believed that the practitioner with the knowledge of techne could teach their skill because they not only had the wisdom of the craft but also understood the outcome.
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