Quotes from work
The Republic

Plato Original title Πολιτεία

The Republic is a Socratic dialogue, written by Plato around 375 BC, concerning justice , the order and character of the just city-state, and the just man. It is Plato's best-known work, and has proven to be one of the world's most influential works of philosophy and political theory, both intellectually and historically.In the dialogue, Socrates talks with various Athenians and foreigners about the meaning of justice and whether the just man is happier than the unjust man. They consider the natures of existing regimes and then propose a series of different, hypothetical cities in comparison, culminating in Kallipolis , a city-state ruled by a philosopher king. They also discuss the theory of forms, the immortality of the soul, and the role of the philosopher and of poetry in society. The dialogue's setting seems to be during the Peloponnesian War.

“One of the penalties for refusing to participate in politics is that you end up being governed by your inferiors.”

Plato The Republic

Source: Republic

“Since those who rule in the city do so because they own a lot, I suppose they're unwilling to enact laws to prevent young people who've had no discipline from spending and wasting their wealth, so that by making loans to them, secured by the young people's property, and then calling those loans in, they themselves become even richer and more honored.”

Plato The Republic

555c, G. Grube and C. Reeve, trans., Plato: Complete Works (1997), p. 1166
The Republic

“There is no one who ever acts honestly in the administration of states, nor any helper who will save any one who maintains the cause of the just.”

Plato The Republic

496d
The Republic

“The inexperienced in wisdom and virtue, ever occupied with feasting and such, are carried downward, and there, as is fitting, they wander their whole life long, neither ever looking upward to the truth above them nor rising toward it, nor tasting pure and lasting pleasures. Like cattle, always looking downward with their heads bent toward the ground and the banquet tables, they feed, fatten, and fornicate. In order to increase their possessions they kick and butt with horns and hoofs of steel and kill each other, insatiable as they are.”

Plato The Republic

586a–b
The Republic

“Necessity is the mother of invention.”

Plato The Republic

Commonly misattributed due to Benjamin Jowett's popular idiomatic translation (1871) of Plato's Republic, Book II, 369c as "The true creator is necessity, who is the mother of our invention." Jowett's translation is noted for injecting flowery, if not florid, language familiar to his Victorian era audience. (See "Note on the Translation", by Elizabeth Watson Scharffenberger, ed., in Republic (2005), Spark Educational Publishing, ISBN 1593080972, p. liii http://books.google.com/books?id=9FLdTCiaI_MC&pg=PR53.) Jowett himself, in Plato's Republic: The Greek Text, Vol. III "Notes", 1894, p. 82, gives a literal translation of Plato as "our need will be the real creator," without the proverbial flourish. The Greek text is: ποιήσει δὲ αὐτήν, ὡς ἔοικεν, ἡ ἡμετέρα χρεία. Perseus.tufts.edu http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0167%3Abook%3D2%3Asection%3D369c
Misattributed