Phronēsis (Greek: φρόνησις) is an Ancient Greek word for wisdom or intelligence which is a common topic of discussion in philosophy. In Aristotelian Ethics, for example in the Nicomachean Ethics it is distinguished from other words for wisdom as the virtue of practical thought, and is usually translated “practical wisdom”, sometimes as “prudence”. Phronesis is also sometimes spelled Fronesis.
Phronesis is the capability to consider the mode of action in order to deliver change, especially to enhance the quality of life. Aristotle says that phronesis is not simply a skill, however, as it involves not only the ability to decide how to achieve a certain end, but also the ability to reflect upon and determine that end.
Whereas young people become accomplished in geometry and mathematics, and wise within these limits, prudent young people do not seem to be found. The reason is that prudence is concerned with particulars as well as universals, and particulars become known from experience, but a young person lacks experience, since some length of time is needed to produce it (Nicomachean Ethics 1142 a).