Top 35 Caroline Leaf Quotes (2025 Update)

1. “Romans 12:2: “Do not conform to the pattern of this world, but be transformed by the renewing of your mind.”

— Caroline Leaf

2. “Multitasking is a persistent myth. Paying deep, focused attention to one task at a time is the correct way.”

— Caroline Leaf

3. “Research shows that 75 to 98 percent of mental, physical, and behavioral illness comes from one’s thought life.”

— Caroline Leaf

4. “The process of thinking and choosing is the most powerful thing in the universe after God, and it is a phenomenal gift from God to be treasured and used properly.”

— Caroline Leaf

5. “Our mind is designed to control the body, of which the brain is a part, not the other way around. Matter does not control us; we control matter through our thinking and choosing. We cannot control the events and circumstances of life but we can control our reactions. In fact, we can control our reactions to anything, and in doing so, we change our brains. It’s not easy; it is hard work, but it can be done through our thoughts and choices.”

— Caroline Leaf

6. “How we think not only affects our own spirit, soul, and body but also people around us.”

— Caroline Leaf

7. “Reaction is the key word here. You cannot control the events or circumstances of your life, but you can control your reactions.”

— Caroline Leaf

8. “What you are thinking every moment of every day becomes a physical reality in your brain and body, which affects your optimal mental and physical health. These thoughts collectively form your attitude, which is your state of mind, and it’s your attitude and not your DNA that determines much of the quality of your life.”

— Caroline Leaf

9. “You are not a victim. You can control your reactions. You do have a choice.”

— Caroline Leaf

10. “What your mind creates only your mind can take away.”

— Caroline Leaf

11. “God designed humans to observe our own thoughts, catch those that are bad, and get rid of them.”

— Caroline Leaf

12. “If the brain can get worse by constantly focusing on the problem, then the brain can get better by understanding how to eliminate and replace the problem.”

— Caroline Leaf

13. “Happiness comes from within and success follows – not the other way around.”

— Caroline Leaf

14. “Daytime thinking is a building process, whereas nighttime thinking is a sorting process.”

— Caroline Leaf

15. “The American Institute of Health estimates that 75–90 percent of all visits to primary care physicians are for stress-related problems.”

— Caroline Leaf

16. “Your brain cannot change until you accept the anxiety or depression as a signal giving you information on its cause, or origin, and in this way you make the anxiety or depression work for you and not against you.”

— Caroline Leaf

17. “Your body is not in control of your mind – your mind is in control of your body, and your mind is stronger than your body. Mind certainly is over matter.”

— Caroline Leaf

18. “We are not victims of our biology or circumstances. How we react to the events and circumstances of life can have an enormous impact on our mental and even physical health.”

— Caroline Leaf

19. “When we step out of our Perfect You, we will be in conflict and this will make us frustrated and unhappy, and even temporarily reduce our intelligence and potentially lead to mental ill health.”

— Caroline Leaf

20. “If you put your mind to it, you can achieve what God says you can achieve.”

— Caroline Leaf

21. “New thoughts are formed over twenty-one days, and these new thoughts are formed into habits after sixty-three days.”

— Caroline Leaf

22. “The sins of parents create a predisposition, not a destiny.”

— Caroline Leaf

23. “Faith motivates us to pursue these goals. Hope leads to expectation, which creates peace, excitement, and health in our minds, thus increasing brain and body health.”

— Caroline Leaf

24. “Reaction is the key word here. You cannot control the events or circumstances of your life, but you can control your reactions. And controlling those reactions is the difference between healthy minds and bodies and sick minds and bodies.”

— Caroline Leaf

25. “Excessive consumption of the high amounts of sodium in processed, salty foods can lead to high blood pressure and heart disease, stroke, kidney damage, cancer, weight gain, osteoporosis, and overeating – this list is equally long and alarming.2.”

— Caroline Leaf

26. “Thinking, as you will see, plays a dominant role in eating. Toxic thoughts can negate the positive effects of good nutrition. Healthy.”

— Caroline Leaf

27. “Things are uncertain, but I can handle it. I’ve never experienced this before, but I can handle it. These are uncertain times, but I can handle it. I have no idea what’s going to happen, but I can handle it.”

— Caroline Leaf

28. “The brain is never the same because it changes with every experience you have, every moment of every day – and you control this with your unique thinking, feeling, and choosing. You use your mind to use your brain. You are the architect of your brain.”

— Caroline Leaf

29. “In fact, when it comes to exercise, your nervous system changes first, followed by your muscles.”

— Caroline Leaf

30. “Yet the animals are not just fed corn and soy. Expired cookies, candy, and even other animals are often turned into feed, including feed for large-scale dairy operations. We have turned herbivores like cattle into carnivores, often with fatal side effects.”

— Caroline Leaf

31. “Many animals are also given growth hormones to further speed up the fattening process.18 These hormones are associated with a number of health risks in both animals and humans, including a possible correlation with cancer, which is why many countries no longer permit the use of hormones in industrial meat production.”

— Caroline Leaf

32. “The bottom line is this: we cannot improve our lifestyle until we learn how to manage our thinking. This is incredibly empowering.”

— Caroline Leaf

33. “Why the Neurocycle Is the Solution to Cleaning Up Your Mental Mess Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less. MARIE CURIE Overview Simple mind-management tools for personal use – to address and ameliorate such warning signals as anxiety, depression, toxic thinking, inability to concentrate, irritability, exhaustion, and burnout before they take over someone’s mind and life –.”

— Caroline Leaf

34. “The mind is a key factor throughout this book. Thinking, as you will see, plays a dominant role in eating. Toxic thoughts can negate the positive effects of good nutrition.”

— Caroline Leaf

35. “Grocery stores, for example, deliberately place candy and chocolate bars by the checkout counter in order to promote “impulse buying.”

— Caroline Leaf

36. “What do corn and soy have to do with meat and dairy? Today, animal feed is made up largely of corn and soy.”

— Caroline Leaf

37. “Likewise, healthier products are often put close to the bottom on the shelves, while processed, sugary foods with bright packaging are put at eye level, socially conditioning us to buy more of them.48.”

— Caroline Leaf

38. “Quantum physics is creeping into every field, causing confusion among scientists, dealing a deathblow to the Newtonian dream, all because it points directly back to God, “the old man,” who has ultimate control. I love it when his plans come together.”

— Caroline Leaf

39. “How real, then, is the food in our supermarkets? Real food, again, is fresh and nutritious, predominantly local, seasonal, grass fed, as wild as possible, free of synthetic chemicals, whole or minimally processed, and ecologically diverse. We have seen that in our supermarkets, even the fresh produce isn’t very fresh. Foods are no longer whole, but processed to extend shelf life.”

— Caroline Leaf