Published in 1937, John Steinbeck’s Of Mice and Men follows two displaced migrant ranch workers—George Milton and his friend Lennie Small—as they chase the American Dream during the Great Depression. Lennie’s mental condition and the novella’s controversial themes have sparked decades of debate about disability, criminal justice, and the nature of innocence.

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Quick Snapshot

Plot Summary

  • George and Lennie seek ranch work in California
  • They share a dream of owning a small farm
  • Tragic events unfold at the ranch in Soledad

Key Characters

  • George Milton – Lennie’s caretaker and protector
  • Lennie Small – Mentally disabled friend with immense strength
  • Curley’s wife – Victim of Lennie’s impulsivity

Themes

  • The fragility of the American Dream
  • Loneliness and companionship
  • Innocence vs. culpability

Adaptations

  • 1992 film starring Gary Sinise and John Malkovich
  • Multiple stage play adaptations
  • Frequently taught in secondary schools

Author: John Steinbeck | Published: 1937 | Genre: Novella | Setting: California during Great Depression | Pages: 107

Key Facts About Of Mice and Men
Attribute Detail
Publication Year 1937 (verified by Hekint.org and multiple sources)
Lennie’s Height Described as “huge” (>97th percentile); fits Sotos syndrome cases over 7 feet
Lennie’s Fate Killed by George to avoid lynching or unfair trial
Death of Curley’s Wife Accidental suffocation by Lennie during a panic episode

What is Of Mice and Men about?

Plot Overview

Of Mice and Men is a novella set in California’s Salinas Valley during the Great Depression. George Milton and his mentally disabled companion Lennie Small travel from farm to farm seeking work, bound together by a shared dream of one day owning their own piece of land. As described by Audible’s book summary, George acts as Lennie’s protector, keeping him out of trouble while managing his companion’s dangerous impulsivity. The novel was published in 1937 and remains one of Steinbeck’s most frequently taught works.

Main Characters

The relationship between George and Lennie forms the heart of the novel. George describes Lennie as having “mental faculties of a child” despite his immense physical strength. Lennie’s childlike innocence—his love of petting soft things and his inability to control his own power—drives the tragic events that unfold throughout the story. Other characters at the ranch include Curley, his wife, Candy, Crooks, and Slim, each representing different aspects of loneliness and broken dreams.

Setting

The novella’s Depression-era setting is integral to its themes. Without social safety nets or understanding of mental disability, characters like Lennie faced dire consequences for behaviors they could not control. As Cornell Law Scholarship notes, the novel critiques how the criminal justice system of the 1930s was illequipped to handle intellectually disabled defendants fairly.

What is Lennie’s mental illness?

Lennie’s Characteristics

Lennie Small is depicted with intellectual disability through simple-minded speech, poor memory, impulsivity, and childlike behavior. His defining obsession is touching soft things—mice, puppy fur, rabbit fur—regardless of the consequences. He carries a dead mouse saying, “I could pet it with my thumb while we walked along,” demonstrating his inability to understand harm or disease risk. His memory is so poor he cannot remember his own actions from moment to moment.

“I like to pet nice things. Once at a fair I seen some of them long-hair rabbits. An’ they was nice, you bet.”

— Lennie Small, eNotes

Interpretations of His Condition

Scholars and readers have debated Lennie’s diagnosis for decades. Some interpret his condition as straightforward intellectual disability, while others propose more specific conditions. IPL.org’s analysis suggests schizophrenia could explain his blurred thoughts, emotions, behavior, and withdrawal—affecting approximately 1.5 million people aged 17-30. However, this interpretation remains controversial.

More compelling is the differential diagnosis from Hekint.org, which proposes Sotos syndrome as Lennie’s condition. This explains his tall stature (>97th percentile), intellectual deficits (mild 30%, moderate 45%, severe 20% of cases), and autistic-like meltdown behaviors. The analysis suggests Sotos syndrome with autism spectrum disorder fits better than other alternatives like panic attacks or petit mal epilepsy.

Reader’s Note: Steinbeck never specified an exact diagnosis. The novel intentionally leaves Lennie’s condition medically ambiguous, allowing readers to interpret his behaviors through various lenses.

Is Lennie a monster?

Reconsidering Lennie’s Portrayal

Despite causing multiple deaths—accidentally killing mice, a puppy, and Curley’s wife—Lennie is not portrayed as a villain. His actions stem from panic, fear, and inability to control his strength when excited or frightened. When confronted by George after killing Curley’s wife, Lennie responds childlike: “If you don’t want me, you only jus’ got to say so, and I’ll… live by myself. An’ I won’t get no mice stole from me.”

“I done another bad thing. It don’t make no difference.”

— Lennie Small, eNotes

Steinbeck’s Intent

John Steinbeck explicitly stated that Lennie represents “the inarticulate and powerful yearning of all men,” not merely a character with mental deficiency. As documented by This Book is Banned, Steinbeck intended Lennie to embody universal human desires and struggles, making him sympathetic rather than monstrous. Modern neurodiversity advocates, including Jeff Snyder’s analysis, argue that Lennie’s social troubles and obsessions make him relatable to readers with autism spectrum conditions.

Context: In the 1930s, intellectual disability often led to assumptions of cold-blooded murder. George’s decision to kill Lennie himself was meant to spare him from torture, prison, or an asylum.

Why is Of Mice and Men so controversial?

Reasons for Controversy

The novel’s themes of violence, mental disability, and the treatment of marginalized individuals have sparked ongoing debate. As JSTOR’s scholarly analysis explains, Lennie reflects 1930s views of intellectually disabled individuals, raising questions about how society handles those who are different. The Stony Brook University thesis examines disability representations in the novel and how it’s taught in secondary classrooms, often leading to parental concerns.

Bans and Challenges

The book has been banned or challenged in numerous schools and libraries. According to This Book is Banned, complaints include vulgar language, depictions of euthanasia, and the portrayal of mental illness. The Depression-era context where George kills Lennie to “spare him” from a likely lynching raises uncomfortable questions about mercy killing that continue to disturb readers.

Reader Advisory: The novel depicts accidental deaths, violence, and suicide. Parents should review content before assigning to younger readers.

What is the most famous line from Of Mice and Men?

Iconic Quotes

Perhaps the most famous passage describes George and Lennie’s shared dream:

“We’ll have a big vegetable patch and a rabbit hutch and chickens. And when the pickin’s come, boss, I won’t need to worry about none of you. We’ll just say the work’s too dirty and for us.”

— George Milton

The Shmoop theme analysis identifies Lennie’s innocence as central to the novel’s tragedy. His childlike mental disability and desire to pet soft things make his fate particularly devastating.

Lennie’s Last Words

At the novel’s end, George prepares Lennie for death by having him look across the river at the mountains while recalling the dream of the farm. Lennie asks George to describe the rabbits, and George obliges. In his final moments, Lennie is thinking only of the soft things he will tend—a stark contrast to the violence that preceded this scene.

Crooks had earlier told Lennie “you don’t understand nothing” during their conversation, reflecting how others perceive his intellectual limitations. Meanwhile, George had once played jokes on Lennie “for being too dumb to take care of ‘imself,” according to IPL.org.

The Bottom Line: Steinbeck’s Of Mice and Men uses Lennie’s condition to challenge readers’ assumptions about innocence, culpability, and societal treatment of those with intellectual disabilities. His fate remains a powerful commentary on justice, compassion, and the American Dream’s elusiveness.

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Frequently Asked Questions

Who wrote Of Mice and Men?

John Steinbeck wrote Of Mice and Men, published in 1937. He later won the Pulitzer Prize for The Grapes of Wrath and the Nobel Prize in Literature.

When was Of Mice and Men published?

The novella was published in 1937, during the Great Depression.

What is the dream in Of Mice and Men?

George and Lennie share a dream of owning a small farm with a vegetable patch, rabbits, and chickens. Lennie especially looks forward to tending the rabbits.

What themes does Of Mice and Men explore?

The novella explores friendship, the fragility of the American Dream, loneliness, innocence versus culpability, and society’s treatment of those who are different.

How does Of Mice and Men end?

George kills Lennie with a shotgun to spare him from being lynched after Lennie accidentally suffocates Curley’s wife. This act is framed as mercy in the context of the 1930s criminal justice system’s lack of understanding about intellectual disability.

What are common adaptations of Of Mice and Men?

The most notable adaptation is the 1992 film starring Gary Sinise as George and John Malkovich as Lennie. There have also been numerous stage play adaptations and audio recordings.

Why do people read Of Mice and Men today?

The novel remains a staple in American literature education because of its exploration of complex themes including mental disability, social justice, friendship, and dreams. As poem analysis and quotes demonstrate, Steinbeck’s work continues to spark discussions about character psychology and social controversies.

For more on behavior and impulsivity in literature, see our understanding impulsivity and behavior guide.