Plato: Justice, the Four Cardinal Virtues, the Form of the Good and the Philosopher-King
RAS Mains, Paper II, Unit I, point 6: "Contribution of moral thinkers and philosophers from India and the world"
- Updated for the Jan 2026 syllabus
- Read time: about 10 minutes
Exam weight (our count from the real 2018-2024 papers)
3 questions, 14 marks in all: 2018 Part A Q4 (2 marks), 2018 Part C Q13 (10 marks), 2023 Part A Q1 (2 marks). Plato was asked at both 2 and 10 marks in the same year (2018). This is our own count, not RPSC information.
30-second summary
Remember
- In the Republic Plato (Athens, 4th century BCE) argues that a just city and a just person are built alike: each part does its own proper work.
- Four virtues: wisdom, courage, temperance and justice. Later writers called them "cardinal".
- The Form of the Good is the highest object of knowledge; a ruler must have some grasp of it.
- Philosopher-king: power should go to those who know and who have no private greed.
- For administrators: the right person in the right post, courage under pressure, restraint with power. Limit: today we also need accountability and public consent.
Part A box (each line 15 words or fewer)
Remember
- Question (real PYQ, 2018, Part A, 2 marks): Define justice according to Plato.
- Answer: Justice, for Plato, is each part of city or soul doing its own proper work. (15 words)
- Ready line 2 (real PYQ, 2023, Part A, 2 marks: What are cardinal virtues according to Plato?): Plato's four cardinal virtues are wisdom, courage, temperance and justice (Republic, Book IV). (13 words)
- Ready line 3: Philosopher-king: the ruler should know the Good through wisdom and be free of greed. (14 words)
1. Plato and the Republic
Plato was a pupil of Socrates. The Republic is a dialogue that asks: what is justice, and does the just person truly live better? Book IV gives the definition. In Jowett's translation: "justice was doing one's own business, and not being a busybody" (Republic IV, 433-434).
2. The city and the soul in parallel
(a summary of Plato's scheme)
| Part | In the city | In the soul | Its virtue |
|---|---|---|---|
| The part that rules | Rulers (guardians proper) | Reason | Wisdom |
| The part that defends | Auxiliaries (soldiers) | Spirit | Courage |
| The part that produces | Farmers, craftsmen, traders | Appetite | Temperance (all parts agree) |
| The whole pattern | Each class does its own work | Each part does its own work | Justice |
3. The four virtues
(Republic IV, 427-434; quotations from Jowett's translation, and wording varies by translator)
Wisdom: knowledge of what is good for the whole city; found mainly in the rulers.
Courage: Jowett: "courage is a kind of salvation... of the opinion respecting things to be feared" (429-430). In plain terms: keeping the right belief about what is truly to be feared, whether under pleasure, pain, desire or fear.
Temperance: Jowett: "the ordering or controlling of certain pleasures and desires" (430). It also means all classes agree on who should rule (431-432).
Justice: each part does its own work; it is the condition that keeps the other three in place.
History of the word: Plato himself did not write "cardinal". The label comes from later Christian writers; tradition credits Ambrose, of the 4th century CE (standard knowledge; check the exact attribution in a source before citing it). In an answer write "the four virtues in Plato" and, if you like, add this note.
4. The Form of the Good
Books VI and VII use the images of the sun, the divided line and the cave. As the sun lets us see visible things and gives them life, the Good is the source of truth and knowledge in the world of understanding. Jowett: "in the world of knowledge the idea of good appears last of all, and is seen only with an effort", and whoever would act rationally in public or private life must keep his eye on it (517).
5. The philosopher-king
In Book V (473) Plato says (Jowett): "Until philosophers are kings, or the kings and princes of this world have the spirit and power of philosophy... cities will never have rest from their evils." In our words: until knowledge and power meet in one person, the city's troubles do not end. To keep greed away, Plato proposed that the guardians own no private property and have no private family. This was his design against corruption.
6. Criticism and limits
The class division is rigid, the ruled give no consent, and it is unclear who will identify the "wise". So in a democracy Plato's virtues are a personal foundation, but accountability, law and public consent must be added separately.
7. Use in administration
| Plato's idea | In today's administration |
|---|---|
| Justice (own work) | Right person in the right post; merit, not nepotism |
| Wisdom | Expertise and knowledge of public interest; evidence-based policy |
| Courage | Refusing an illegal order, reporting corruption, standing firm under political pressure |
| Temperance | Restraint on gifts, show and misuse of power |
| Guardians own no property | Conflict-of-interest and asset-declaration rules (our reading) |
Worked examples (documented, with year)
Satyendra Dubey, 2003 (an example of courage, used with care)
Satyendra Dubey, a project director at the National Highways Authority of India (NHAI), wrote to the then Prime Minister about financial and contractual irregularities in the Golden Quadrilateral highway work and asked that his name be kept confidential (DNA India report). He was shot dead in Gaya (Bihar) on 27 November 2003. The CBI presented the killing as a robbery-murder, and on 22 March 2010 a Patna court convicted three accused under IPC section 302 (murder) and section 394 (hurt in committing robbery). Whether the killing was linked to his exposure is a matter of public speculation; the court's finding was robbery and murder.
Sources: Wikipedia, "Satyendra Dubey"; DNA India report on the conviction. So in an answer write only that he exposed irregularities and was murdered the same year; do not write that he was killed because of it. The government's Public Interest Disclosure and Protection of Informers (PIDPI) Resolution (No. 89, 21 April 2004) came after a Supreme Court direction in a writ filed after his murder (according to a government vigilance manual); write "followed", not "because of".
Gift rule (Central Civil Services Conduct Rules, 1964, Rule 13; see page 3.1)
a rule-based form of temperance: a limit on benefits that come with power.
Public Service Commissions (Constitution, Article 315 onwards)
Article 315 provides for a Public Service Commission for the Union and one for each State; merit-based selection through the Commissions echoes "the right person in the right post", which is our reading.
How to use in an answer
definition first, then the modern form of courage and temperance, then one example (Dubey 2003 or the gift rule), and end with the limit (accountability and consent).
Thinkers and quotes box
| Name | Idea | Usable line (Jowett translation, wording varies by translator) |
|---|---|---|
| Plato | Justice is one's own work | "justice was doing one's own business, and not being a busybody" (Republic IV) |
| Plato | The philosopher-king | "Until philosophers are kings, or the kings and princes of this world have the spirit and power of philosophy... cities will never have rest from their evils." (Republic V) |
| Plato | Courage | "courage is a kind of salvation" (Republic IV); meaning: guarding the right belief about what is to be feared |
Diagram: city and soul in parallel
Rulers
Left column (city): then then
Auxiliaries (soldiers)
Producers
Reason
Right column (soul): then then
Spirit
Appetite
Wisdom
Linking arrows with virtues
Courage
Temperance
Justice: each part does its own work
Roof over both columns: ; a glowing point above
Form of the Good
How the concept was asked before: justice twice in 2018 (2 and 10 marks), virtues in 2023. Each time the sub-topic was new, so expect wisdom, the Form of the Good or the philosopher-king next.
Common mistakes
Remember
- Writing justice in today's sense of "equality or fairness"; Plato's justice is role-based: each part does its own work (for fairness see page 6.8, Rawls).
- Listing the four virtues but dropping wisdom, or adding a fifth such as piety; the Book IV list has four.
- Giving only theory in a 10-mark answer; without a modern administrative form and one example the answer is incomplete.
Self-check (5 questions)
Remember
- State Plato's definition of justice in one sentence.
- Name the four virtues and the class of the city linked with each.
- What does courage mean in Jowett's translation?
- By which images is the Form of the Good explained?
- Give two limits of the philosopher-king idea.
Mini case study
Illustrative exampleHypothetical case (काल्पनिक केस)
Kavya Rawat, an Executive Engineer, finds in her tests that substandard cement was used on the approach road of a bridge. The contractor is a relative of the local MLA. The MLA "suggests" that she pass the work before the monsoon so the bridge can be inaugurated. Passing it avoids a quarrel; stopping it risks political anger.
- Stakeholders
- Kavya, the contractor, the MLA, villagers who will use the bridge, the Superintending Engineer and the department, other honest contractors.
- Issue and clashing values
- courage, integrity and public safety against political displeasure, job security and time pressure.
- Three options
- (a) Pass the work quietly. Pro: no clash. Con: risk to lives, a share in corruption, breach of duty. (b) Object orally and hold the work up, but write nothing. Pro: quick safety. Con: no proof, and it is easy to overrule from above. (c) Record the test report, issue a written non-conformance notice, inform the Superintending Engineer, give a practical timetable for rework, and if pressed, use written channels or the vigilance wing. Pro: lawful and safe; protects the public. Con: political friction and a delayed inauguration.
- Best option and supporting value
- option (c). For Plato, courage is knowing what to fear: harming the public, not an angry MLA. Justice: the engineer certifies on facts (her own work). Temperance: no favour is owed.
Lesson
Action: Short term: test report, written notice, information to the superior; open only the part certified safe. Long term: third-party quality audit, publish test results, rotate inspecting officers.
Practice Questions
Practice questionabout 50 words
Explain Plato's idea of justice in the city and in the soul.
Model answer
For Plato, justice is each part doing its own proper work. In the city, rulers govern with wisdom, soldiers defend with courage, and producers work; temperance makes all accept this order. In the soul, reason leads, spirit supports and appetite obeys. Injustice is a mixing of roles.
Practice questionabout 100 words
"Plato's theory of justice includes courage and temperance. Are they still needed in modern society and administration?"
Model answer
Yes. For Plato, courage is holding the right belief about what truly deserves fear, even under pressure; temperance is mastery over desire and agreement on who should rule. Administration needs both; without them expertise turns into abuse. Courage lets an officer refuse an illegal order or report corruption, as Satyendra Dubey did in 2003 by exposing highway irregularities. Temperance restrains greed and favour; the gift rules exist for this. Plato's own safeguard was that guardians own no private property. Yet virtue alone is not enough today: whistleblower protection, audits and accountability must guard it, along with public consent.
Real PYQs
2018Paper II, Part A, Q42 marks
Define justice according to Plato.
2018Paper II, Part C, Q1310 marks
Plato's theory of justice includes courage and temperance. Are they still needed in modern society and administration?
2023Paper II, Part A, Q12 marks
What are cardinal virtues according to Plato?
2024Closely relatedPaper II, Part C, Q1110 marks
What is the meaning of 'Good'? How shall your idea of Good help structure a good administration? (Plato's Form of the Good is one useful view; see page 2.6)
How to Write This Answer
Introduction
Plato's justice and four virtues
Body
- meaning of courage and temperance; modern administrative forms; one example
Conclusion
personal virtue plus institutional accountability
Value addition
- Dubey 2003, gift rule, Jowett's line
One-page Revision
- Plato, Republic
- Justice = each part its own work (IV, 433)
- Four virtues: wisdom, courage, temperance, justice (IV, 427-434)
- "Cardinal" is a later label (tradition: Ambrose, 4th century CE)
- City-soul: rulers-reason, auxiliaries-spirit, producers-appetite
- Form of the Good: sun, line, cave (VI-VII)
- Philosopher-king (V, 473)
- Limits: rigid classes, no consent
- PYQs: 2018 A4, 2018 C13, 2023 A1
- Examples: Satyendra Dubey 2003, Rule 13
- Case: Engineer Kavya, written notice.