Judith Mossman — Plutarch's Parallel Lives

In one sentence

Plutarch transformed the study of history into a moral inquiry by pairing famous Greek and Roman figures to contrast their characters, virtues, and vices.

Why read this (and who it's for)

This summary is for anyone interested in the origins of biography, the intersection of philosophy and history, or the cultural bridge between Greece and Rome. It explains how Plutarch moved beyond "what happened" to "who they were," providing a framework for understanding human character through comparison. You will be able to identify the "moral" core of historical figures and understand why Plutarch’s work remains the foundational source for Western character studies, including those of Shakespeare.

The big idea

Plutarch (c. 46 AD–c. 120 AD) did not write "histories" in the modern sense; he wrote Lives. His central thesis was that by placing two figures side-by-side—often a Greek and a Roman—one could better understand the human condition. He was less interested in a dry chronology of events and more interested in the "inner lives" of great men.

The logic of his work is rooted in synchresis (a "together judgment"). By comparing how two different men responded to similar events or shared experiences, Plutarch sought to reveal the underlying character of the individuals. He believed that events themselves are less telling than the reactions to those events. For Plutarch, a biography was a vehicle for moral education, intended to show how great men managed their passions, handled power, and navigated the complexities of public life.

Key ideas

The Method of Parallelism

Plutarch paired a Greek figure with a Roman figure to create a comparative study. This was not always based on chronology; instead, he chose pairs based on shared themes like ambition, power, or the control of passions.

• Why it matters: It shifts the focus from "what happened" to "how did they react?" It forces the reader to see the unique internal choices of a leader rather than just their external actions.
• In the book: He pairs Lysander (a Spartan military commander) with Sulla. While their roles were different, they were both important military figures. Lysander showed respect to Delphi, while Sulla stole from it, providing a stark contrast in their moral character.

Character as "Stamp"

For Plutarch, "character" was not a modern psychodynamic development. It was something "stamped" onto a person. He believed that while external events provide the stimuli, the reaction to those stimuli reveals the pre-existing character of the individual.

• Why it matters: It suggests that history is a series of tests of character. To understand a person, you must look at how they respond to the "boot" of authority or the temptations of power.
• In the book: He uses the example of Alexander the Great. By monitoring Alexander's reactions to external stimuli at different points in his life, Plutarch traces a development in his character.

Moral Education over Historical Accuracy

Plutarch was often willing to sacrifice chronological accuracy or "truth" for the sake of a moral point. He believed that if a story was "worthy of a man's magnanimity and wisdom," it was worth telling, even if the exact dates were disputed.

• Why it matters: It establishes biography as a literary and moral genre rather than a purely academic one. The goal is to teach the reader how to be a better human, not just a better historian.
• In the book: In the life of Solon, Plutarch includes a meeting with the King of Lydia (Cyrus). Though some argue the meeting is chronologically impossible, Plutarch argues that because the story comports so well with Solon's character, it should not be rejected.

The Greek-Roman Cultural Bridge

Plutarch lived in a world where Greece was a subject province of Rome. He was a "proud Greek" who nonetheless valued the stability and laws of the Roman Empire. His work served as a bridge to convince Romans that Greeks were great statesmen and to convince Greeks that Romans had faced similar civil wars and struggles.

• Why it matters: It shows how art and philosophy can serve as "soft power." Plutarch used his status as a scholar to ensure that Greek culture was not treated as a mere museum but as a living source of moral wisdom.
• In the book: He describes a Roman general (Flamininus) who conquered Macedon. Though a Roman, he is described in "Greek language" because his actions were so beneficent for Greece.

The Influence on Shakespeare

Plutarch’s focus on the "inner lives" of great men directly influenced William Shakespeare, particularly in his tragedies. Shakespeare used Plutarch's descriptions of character and emotion to build the psychological depth of his protagonists.

• Why it matters: It demonstrates the enduring power of Plutarch’s work. His "moral" approach to biography became the blueprint for how we still think about the "great men" of history.
• In the book: Shakespeare’s Julius Caesar and Antony and Cleopatra draw heavily from Plutarch. For example, the "evil spirit" speech in Julius Caesar is almost identical to the text in Plutarch's Life of Brutus.

Frameworks & tools

The Parallel Comparison Method

To analyze a historical figure or a modern leader, use Plutarch's method of "Synchresis" (Together Judgment):

1. Identify a Theme: Choose a shared experience (e.g., handling a crisis, managing a team, dealing with a rival).
2. Select a Pair: Find two figures who faced this same theme but had different outcomes.
3. Analyze the Reaction: Ignore the "what" of the event; focus entirely on the "how" of the reaction.
4. Extract the Moral: What does the difference in their reactions tell us about their internal character?

Memorable examples & stories

The Death Warrant of Rusticus

While Plutarch was lecturing in Rome on "being a busybody," a soldier entered the room with a death warrant for a man in the audience (Arulainus Rusticus). The man refused to break the seal until the lecture was finished.

• The Lesson: This illustrates the "dignity" and public persona that Plutarch admired—the ability to maintain composure in the face of ultimate consequence.

Alexander’s Bath

Plutarch describes Alexander arriving at a king's camp and saying, "I'm going to take a bath in Darius's bath." When told it was actually Alexander's bath, he continued.

• The Lesson: This was a setup to discuss Alexander's "self-control." Plutarch uses the scene to show how Alexander treated the women of the harem with respect, establishing his character as a man of discipline.

The "Grumpy Teenager" Alexander

Plutarch describes a scene where a young Alexander is grumpy and his father, Philip, tells him to "go on, you see if you can do any better." Alexander rides back to his father, and Philip is in tears of pride.

• The Lesson: Plutarch uses these "grand scenes" to establish the character of a leader before moving into the larger narrative of their life.

The "Fake" Coriolanus

The experts note that the historical evidence for Coriolanus is "exceptionally poor." However, Plutarch wrote his life anyway because he was interested in the emotions and character revelation of the story.

• The Lesson: In Plutarch's world, the psychological truth of a character is more important than the verifiable fact of their existence.

Key quotes

"I am writing these lives... because I'm learning moral stuff." (Paraphrased)

• Why it matters: This highlights that for Plutarch, biography was a tool for personal and public moral development.

"The Greek word synchresis means a together judgment."

• Why it matters: This is the foundational mechanic of his work: comparing two things to judge the quality of each.

"Events bring out what's already in there." (Paraphrased)

• Why it matters: This defines Plutarch's view of character—it is a "stamp" that reacts to external stimuli.

How to apply it

This week

• The Reaction Audit: Choose one major event from your week (a conflict, a success, a failure). Instead of writing what happened, write three sentences on how you reacted to it. What did that reaction reveal about your current "character stamp"?
• The Parallel Pair: Identify a person you admire and a person you find challenging. Find one shared experience they both had (e.g., a difficult project, a move to a new city). Compare how they handled it.

Ongoing

• The "Synchresis" Lens: When reading news or history, stop asking "Who won?" and start asking "How did they react to the pressure?"
• Moral Mapping: When reading biography, look for the "moral" the author is trying to teach. Ask: "What character trait is this author trying to highlight?"

Common pitfalls

• The Accuracy Trap: Readers often mistake Plutarch for a "historian." If you look for perfect dates or verified facts, you will be disappointed. He is a moralist using the past as a laboratory.
• The "Modern" Trap: Do not try to apply modern psychology (Freud, etc.) to Plutarch's characters. He believed character was a fixed "stamp," not a developmental process.
• The "Parallel" Trap: Modern readers often look for "parallel" books. Plutarch's "parallels" are often thematic, not chronological. Don't expect the two men in a pair to have lived at the same time.

Connects to

• Thucydides: Mentioned as the gold standard for history, which Plutarch deliberately chose not to imitate in favor of biography.
• Shakespeare: For understanding how Plutarch's moral character studies became the foundation for Western drama.
• Aristotle: One of Plutarch's main sources for both factual and philosophical content.

If you remember only three things

• Synchresis: The method of comparing two people to judge their character.
• Reaction over Action: History is not what happened; it is how people reacted to what happened.
• Moral Education: The purpose of biography is to teach the reader how to live.

Internalize it

• Reflection questions

  • If you were to be "stamped" with a single character trait based on your reactions to stress, what would it be?
  • Which historical figure do you admire most? What specific "reaction" of theirs convinced you of their greatness?
  • How would your perspective change if you viewed history as a series of "moral tests" rather than a timeline of events?

• Flashcards Q: What is the meaning of the Greek word synchresis? A: A "together judgment"—comparing two things to judge which is superior or how they differ. Q: Why did Plutarch pair Greek and Roman figures? A: To compare how different men responded to similar events and to provide moral education. Q: How did Plutarch define "character"? A: As a "stamp" that is revealed by a person's reactions to external stimuli. Q: Why did Plutarch include "historically" questionable stories (like Solon and Cyrus)? A: Because they were worthy of the character of the man and served a moral purpose. Q: Who was a major literary descendant of Plutarch's work? A: William Shakespeare, who used Plutarch's descriptions of character to inform his plays.

Fidelity note

This summary is based entirely on the transcript of the "In Our Time" episode. The experts (Mossman, Erskine, and Cartledge) emphasize that Plutarch is a philosopher-biographer, not a historian. The summary accurately reflects the distinction between his "Parallel Lives" and the "histories" of his contemporaries. One nuance to verify: the specific "moral" of each individual life varies, but the overarching goal is always the education of the reader.