The Republic (Plato) in the context of "Cardinal virtues"

De re publica (On the Republic; see below) is a dialogue on Roman politics by Cicero, written in six books between 54 and 51 BC. The work does not survive in a complete state, and large parts are missing. The surviving sections derive from excerpts preserved in later works and from an incomplete palimpsest uncovered in 1819. Cicero uses the work to explain Roman constitutional theory. Written in imitation of Plato's Republic, it takes the form of a Socratic dialogue in which Scipio Aemilianus takes the role of a wise old man.

The work examines the type of government that had been established in Rome since the kings. The development of the constitution is explained, and Cicero explores the different types of constitutions and the roles played by citizens in government. The work is also known for the Dream of Scipio, a fictional dream vision from the sixth book.

In philosophy, desire has been identified as a recurring philosophical problem. It has been variously interpreted as what compels someone towards the highest state of human nature or consciousness, as well as being posited as either something to be eliminated or a powerful source of potential.

In Plato's The Republic, Socrates argued that individual desires must be postponed in the name of a higher ideal. Similarly, within the teachings of Buddhism, craving, identified as the most potent form of desire, is thought to be the cause of all suffering, which can be eliminated to attain greater happiness (Nirvana). While on the path to liberation, a practitioner is advised to "generate desire" for skillful ends.

Huey Percy Newton (February 17, 1942 – August 22, 1989) was an African American revolutionary and political activist who co-founded the Black Panther Party in 1966. He ran the party as its first leader and crafted its ten-point manifesto with Bobby Seale. Under his leadership, the Party organized numerous social programs and community events, but also advocated for collective defense and threatened political violence.

Newton learned to read using Plato's Republic, which influenced his philosophy of activism. He went on to earn a PhD in social philosophy from the University of California at Santa Cruz's History of Consciousness program in 1980.

The analogy of the divided line (Ancient Greek: γραμμὴ δίχα τετμημένη, romanized: grammē dicha tetmēmenē) is presented by the Greek philosopher Plato in the Republic (509d–511e). It is written as a dialogue between Glaucon and Socrates, in which the latter further elaborates upon the immediately preceding analogy of the Sun at the former's request. Socrates asks Glaucon not only to envision this unequally bisected line but to imagine further bisecting each of the two segments. Socrates explains that the four resulting segments represent four separate 'affections' (παθήματα) of the psyche. The lower two sections are said to represent the visible while the higher two are said to represent the intelligible. These affections are described in succession as corresponding to increasing levels of reality and truth from conjecture (εἰκασία) to belief (πίστις) to thought (διάνοια) and finally to understanding (νόησις). Furthermore, this analogy not only elaborates a theory of the psyche but also presents metaphysical and epistemological views.