New Thought · 1866-1954
Brains and How to Get Them
Larson's guide to developing intelligence, mental acuity, and cognitive capacity - arguing that 'brains' are not fixed at birth but cultivated through specific mental habits.
What Larson Got Right
Why Brains and How to Get Them still matters
Larson's central premise - that the brain is not a fixed, genetic inheritance but a dynamic biological system that responds to experience and directed attention - anticipates the foundational discovery of modern neuroscience. Experience-dependent neuroplasticity was not formally established until decades after Larson wrote, yet he described its functional operation accurately: direct attention to a capability repeatedly and that capability strengthens. His democratic view of intelligence was genuinely revolutionary in an era of rigid genetic determinism.
His triadic framework for cognitive capacity - physical brain cells, quality of mind acting through the brain, and the actions of the mind itself - is a remarkably sophisticated early model of the relationship between biological substrate, attentional quality, and cognitive output. Modern cognitive neuroscience would not fundamentally disagree with this structure, even if the mechanisms Larson proposed were inaccurate.
Larson's emphasis on somatic integration - his instruction to deeply relax the body and distribute energy through the nervous system after intense concentration - is an accurate, practical protocol for preventing cognitive burnout. The rest-as-active-ingredient insight ('give proper rest to the brain and mind and you will never lose your brilliancy no matter how long you live') runs directly counter to the industrial work-without-stopping ethic of his era and prefigures modern understanding of how sleep and recovery consolidate learning.
His approach to domain-specific genius development - arguing that concentrating on tonal harmony develops acoustic and motor processing, that spatial focus develops artistic capacity - is a pre-scientific description of experience-dependent cortical reorganisation. The specific mechanism he proposed (rapid cellular multiplication) was wrong, but the directional insight that sustained practice in a domain reorganises the brain toward that domain is correct.
Historical Context
How Brains and How to Get Them came to be written
Brains and How to Get Them was published in 1913, part of Larson's extraordinarily prolific period in Los Angeles following the collapse of his Chicago publishing company in 1912. The book served as the physical and biological counterpart to his psychological and spiritual volumes, attempting to anchor abstract metaphysical principles directly into the material structure of human neurology.
The Progressive Era context is essential: the period was defined by an obsession with mechanical efficiency and scientific management (Taylorism). Larson translated this cultural obsession into the human mind - viewing the brain not as a static, divinely ordained vessel but as a biological infrastructure project that could be engineered, optimised, and physically expanded.
This perspective represented a major theological departure from both Transcendentalism (which emphasised passive alignment with the Over-Soul) and Christian Science (which denied physical reality altogether). Larson insisted that mind and physical brain exist in a reciprocal, somatic partnership - a view that made his work highly attractive to the emerging class of managers, inventors, and white-collar professionals seeking a non-superstitious framework for self-improvement.
In urban centres across America, the transition from agrarian life to dense industrial cities demanded a new psychological framework for personal development. Larson's democratic claim - that cognitive capacity was developable regardless of genetic or social starting point - offered something rare in an era of rigid class and heredity assumptions.
Larson's collaboration with Ernest Holmes grew from this period. Holmes was so impressed by Larson's textbooks that he abandoned Mary Baker Eddy's Christian Science. Holmes and his brother Fenwicke took a formal correspondence course directly with Larson, laying the foundation for what would become the Religious Science movement.
Core Principles
The 6 core principles of Brains and How to Get Them
The Triadic Intelligence Model
Cognitive capacity is determined by three co-equal factors: the physical cells of the brain, the quality of mind acting through the brain, and the active direction of the mind itself. All three are developable.
Directed Attention as Physical Stimulus
The energy employed in thinking should build brain cells and develop faculties during the process of thought. Every conscious act of directed attention is simultaneously a physical stimulus to neurological development.
Effortless Focus
Deep concentration does not require tense, stressful mental effort. By entering into the finer subconscious life with strong desire but relaxed physical body, the practitioner stimulates deep neural regions without causing biological exhaustion.
Somatic Recovery as Active Ingredient
Rest is not the absence of development but an active part of it. Giving proper rest to body and brain prevents the loss of vitality and brilliancy regardless of how long or intensively the mind has worked.
Domain-Specific Development
Specific cognitive talents - musical, artistic, literary, mechanical - are developed by concentrating attention on the perceptual and creative demands of that domain, stimulating the brain regions involved in that processing.
Democratic Genius
Genius and talent are qualities that can be systematically trained and built by anyone willing to apply directed concentration. This dismantled the genetic determinism of the Gilded Age and offered a path of cognitive self-determination.
Quotes
Worth sharing
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“The physical cells of the brain can be increased in number and improved in quality, leading to greater mental capacity and power.”
“Give proper rest to the brain and the mind, and you will never lose your brilliancy no matter how long you may live.”
“The energy employed in thinking should build brain cells and develop faculties during the process of thought, no matter what that thought might be.”
Chapter by Chapter
What's inside Brains and How to Get Them
Legacy
The legacy of Brains and How to Get Them
Brains and How to Get Them bridges early Transcendentalism with modern cognitive training, offering insights that directly prefigure the growth mindset research of Carol Dweck and the neuroplasticity discoveries that became mainstream in the late 20th century. Larson was practising and teaching experience-dependent neuroplasticity as a philosophical stance before the biology existed to validate it.
Ernest Holmes, the founder of Religious Science, was profoundly influenced by Larson's practical metaphysics - including Brains and How to Get Them. Holmes ranked Larson's works alongside Ralph Waldo Trine's In Tune with the Infinite as the most foundational texts in his own development. Larson later became an associate editor of Science of Mind Magazine and faculty at the Institute of Religious Science.
The Optimist Creed ('Promise Yourself'), published by Larson in 1912 and formally adopted by Optimist International in 1922, gave his ideas a secular, civic reach beyond the New Thought movement. The creed has been translated into dozens of languages and continues to be distributed globally through Optimist Clubs.
Today Brains and How to Get Them remains in print through Cosimo Classics, Kessinger Publishing, and multi-volume collections - read both as a historical text of New Thought and as an early precursor to modern neuroplasticity and positive psychology.
What Was Missing
What Larson could not have known
Larson's literal assertion that conscious concentration can rapidly multiply and physically rearrange brain cells on demand in specific cranial regions is scientifically inaccurate. Modern neuroscience confirms that experience alters synaptic strength and neural connectivity (neuroplasticity), but Larson's claims of rapid, localised neurogenesis represent a romanticised exaggeration of biological processes - conflating the metaphorical 'building' of mental pathways with literal, rapid physical construction of new cellular tissue.
In his chapters on specialised genius - music, art, invention, literature - Larson suggests that focusing subjective concentration on targeted brain centres will naturally yield extraordinary talent. This heavily minimises the necessity of technical training, physical practice, external feedback, and the slow accumulation of domain knowledge. Deep concentration can accelerate skill development but cannot substitute for it.
The abstract, undefined terms 'finer forces' and 'subjective concentration' frustrate readers seeking a concrete, step-by-step methodology - highlighting the book's origins as a speculative, pre-scientific text that relies on metaphysical vocabulary where it cannot yet provide mechanical explanation.
Who This Is For
Who gets the most from Brains and How to Get Them
- ✓You believe your intelligence or cognitive capacity is fixed and want a framework for challenging that assumption
- ✓You want to understand the relationship between concentration, attention, and the physical development of mental capability
- ✓You are interested in talent development and want to know what the early self-help movement understood about how expertise is built
- ✓You struggle with mental fatigue, scattered attention, or cognitive burnout and want both a framework and practical recovery tools
- ✓You are a high performer who wants to extend mental longevity and protect cognitive sharpness over decades
- ✓You want the intellectual history behind growth mindset and neuroplasticity - the pre-scientific version that intuited the mechanism before the studies existed
The DAR Response
We applied CBT, NLP & somatic work to Brains and How to Get Them
Brains and How to Get Them is a direct predecessor to the DAR Align phase - specifically the work of building deliberate cognitive capacity through directed attention and restorative rest. Larson's concentration exercises are essentially early mindfulness-based cognitive training: holding sustained focus on a specific subject or quality for extended periods without mental strain. In the DAR framework this is the practice of choosing where to put your attention and sustaining it there - the foundation of the Rewire process.
Larson's somatic recovery protocol maps directly onto the DAR nervous system regulation work. His instruction to physically relax after intense concentration, to feel energy distributing through the nervous system, to rest deeply rather than push through fatigue - these are the biological prerequisites for consolidating the cognitive changes that concentration initiates. You cannot rewire what you cannot rest. Larson understood this in 1913 without the neuroscience vocabulary; DAR gives it that vocabulary and places it in a sequenced daily practice.
The Tools
DAR workbooks & tools for Brains and How to Get Them
Develop mental sharpness with Larson's method, backed by modern cognitive science.
Larson's principles for cultivating intelligence and mental capacity in one reference guide.
90 days of structured mental development habits aligned with Larson's principles.
A full year of mind-expanding daily affirmations from Brains and How to Get Them.
All five Brains and How to Get Them products in one discounted bundle.
Brains and How to Get Them - Affirmation Card Deck
50 printable cards for daily mental development practice from Larson's teaching.
Questions Answered
Questions about Brains and How to Get Them
Can concentration exercises really change the brain?+
What is the relationship between Brains and How to Get Them and How the Mind Works?+
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