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If you were looking for the best popular psychology quotes from famous books, you’ve come to the right place. The human brain is a mystery studied by many till date. And yet it continues to dazzle and confuse many.

Here are 26 psychological quotes about the human mind that have been picked from popular novels that will help you appreciate the beauty of this relatively small body part. Enjoy!

  1. “But I know human nature, my friend, and I tell you that, suddenly confronted with the possibility of being tried for murder, the most innocent person will lose his head and do the most absurd things.”
    Agatha Christie, Murder on the Orient Express
  2. “A reliable way to make people believe in falsehoods is frequent repetition, because familiarity is not easily distinguished from truth. Authoritarian institutions and marketers have always known this fact.”
    Daniel Kahneman, Thinking, Fast and Slow
  3. “The world didn't stop because we weren't in it anymore.”
    Susanna Kaysen, Girl, Interrupted             

  4. “A man's concern, even his despair, over the worthwhileness of life is an existential distress but by no means a mental disease.”
    Viktor E. Frankl, Man's Search for Meaning

  5. “With wine and food, the confidence of my own table, and the necessity of reassuring my wife, I grew by insensible degrees courageous and secure.”
    H.G. Wells, The War of the Worlds

  6. “I suppose it is tempting, if the only tool you have is a hammer, to treat everything as if it were a nail.”
    Abraham Maslow, Toward a Psychology of Being

  7. “Maybe we all have darkness inside of us and some of us are better at dealing with it than others.”
    Jasmine Warga, My Heart and Other Black Holes

  8. “A life that is burdened with expectations is a heavy life. Its fruit is sorrow and disappointment.”
    Douglas Adams, The Long Dark Tea-Time of the Soul

  9. “I was on a quest to help myself. I believe the same is true for most people who go into mental health. We are drawn to this particular profession because we are damaged - we study psychology to heal ourselves. Whether we are prepared to admit this or not is another question.”
    Alex Michaelides, The Silent Patient

  10. “Thought is so cunning, so clever, that it distorts everything for its own convenience.”
    Jiddu Krishnamurti, Freedom from the Known

  11. “What I was chasing in circles must have been the tail of the darkness inside me.”
    Haruki Murakami, After the Quake

  12. “It is a predisposition of human nature to consider an unpleasant idea untrue, and then it is easy to find arguments against it.”
    Sigmund Freud, A General Introduction to Psychoanalysis

  13.  “A wonderful fact to reflect upon, that every human creature is constituted to be that profound secret and mystery to every other.”
    Charles Dickens, A Tale of Two Cities

  14. “I don’t know what’s worse: to not know what you are and be happy, or to become what you’ve always wanted to be, and feel alone.”
    Daniel Keyes, Flowers for Algernon

  15. “There is hope, even when your brain tells you there isn't.”
    John Green, Turtles All the Way Down

  16. “Introverts, in contrast, may have strong social skills and enjoy parties and business meetings, but after a while wish they were home in their pajamas. They prefer to devote their social energies to close friends, colleagues, and family. They listen more than they talk, think before they speak, and often feel as if they express themselves better in writing than in conversation. They tend to dislike conflict. Many have a horror of small talk, but enjoy deep discussions.”
    Susan Cain, Quiet: The Power of Introverts in a World That Can't Stop Talking

  17.  “Feelings don't try to kill you, even the painful ones. Anxiety is a feeling grown too large. A feeling grown aggressive and dangerous. You're responsible for its consequences, you're responsible for treating it. But...you're not responsible for causing it. You're not morally at fault for it. No more than you would be for a tumor.”
    Patrick Ness, The Rest of Us Just Live Here

  18.  “A lot of people, especially psychoanalysts, assume that happiness can only be found in a couple - but not all of us are made for a relationship.”
    Stephen Grosz, The Examined Life: How We Lose and Find Ourselves

  19.  “When you want to know how things really work, study them when they're coming apart.”
    William Gibson, Zero History

  20. “It is always assumed by the empty-headed, who chatter about themselves for want of something better, that people who do not discuss their affairs openly must have something to hide.”
    Honoré de Balzac, Père Goriot

  21. “Ultimate horror often paralyses memory in a merciful way.”
    H.P. Lovecraft, The Rats in the Walls

  22. “Quiet people always know more than they seem. Although very normal, their inner world is by default fronted mysterious and therefore assumed weird. Never underestimate the social awareness and sense of reality in a quiet person; they are some of the most observant, absorbent persons of all.”
    Criss Jami, Healology

  23. “The primary cause of unhappiness is never the situation, but you thoughts about it. Be aware of the thoughts you are thinking.”
    Eckhart Tolle, A New Earth: Awakening to Your Life's Purpose

  24. “We are a society of notoriously unhappy people: lonely, anxious, depressed, destructive, dependent — people who are glad when we have killed the time we are trying so hard to save.”
    Erich Fromm, To Have or to Be? The Nature of the Psyche

  25. “He fought because he actually felt safer fighting than running.”
    Richard Adams, Watership Down

  26.  “That's the way the mind works: the brain is genetically disposed towards organization, yet if not controlled, will link even the most imagerial fragment to another on the flimsiest pretense and in the most freewheeling manner, as if it takes a kind of organic pleasure in creative association, without regards to logic or chronological sequence.”
    Tom Robbins, Fierce Invalids Home from Hot Climates

I hope you enjoyed this deep, dark quotes. If you loved these psychology quotes from books please comment below, or feel free to add in some new quotes in the comments section I haven’t covered yet.

Happy Reading!

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