Top 200 Knowledge Quotes (2025 Update)
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51. “Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense.”

— Buddha

52. “Information is just bits of data. Knowledge is putting them together. Wisdom is transcending them.”

— Ram Dass

53. “We are a way for the cosmos to know itself.”

— Carl Sagan

54. “It is what you read when you don’t have to that determines what you will be when you can’t help it.”

— Oscar Wilde

55. “If you spend an extra hour each day of study in your chosen field you will be a national expert in that field in five years or less.”

— Earl Nightingale

56. “We can know only that we know nothing. And that is the highest degree of human wisdom.”

— Leo Tolstoy

57. “To know that you do not know is the best. To think you know when you do not is a disease. Recognizing this disease as a disease is to be free of it.”

— Lao Tzu

58. “The improvement of understanding is for two ends: first, our own increase of knowledge; secondly, to enable us to deliver that knowledge to others.”

— John Locke

59. “The high-minded man must care more for the truth than for what people think.”

— Aristotle

60. “Those people who think they know everything are a great annoyance to those of us who do.”

— Isaac Asimov

61. “No sanction can stand against ignited minds.”

— Abdul Kalam

62. “Knowledge is only potential power. It becomes power only when, and if, it is organized into definite plans of action, and directed to a definite end.”

— Napoleon Hill

63. “There is only one good, knowledge, and one evil, ignorance.”

— Socrates

64. “Follow the evidence wherever it leads, and question everything.”

— Neil deGrasse Tyson

65. “Reading is to the mind what exercise is to the body.”

— Joseph Addison

66. “It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.”

— Arthur Conan Doyle

67. “Never assume you understand. Ask the questions.”

— Brian Tracy

68. “Ignorance, the root and the stem of every evil.”

— Plato

69. “Where there is shouting, there is no true knowledge.”

— Leonardo da Vinci

70. “I write to discover what I know.”

— Flannery O'Connor

71. “All knowledge is ultimately self-knowledge.”

— Bruce Lee

72. “Facts do not cease to exist because they are ignored.”

— Aldous Huxley

73. “The gift of truth excels all other gifts.”

— Buddha

74. “In my whole life, I have known no wise people who didn’t read all the time — none, zero.”

— Charlie Munger

75. “Self-education is a continuing source of pleasure to me, for the more I know, the fuller my life is and the better I appreciate my own existence.”

— Isaac Asimov

76. “By three methods we may learn wisdom: First, by reflection, which is noblest; Second, by imitation, which is easiest; and third by experience, which is the bitterest.”

— Confucius

77. “What can be asserted without evidence can be dismissed without evidence.”

— Christopher Hitchens

78. “Beware of false knowledge; it is more dangerous than ignorance.”

— George Bernard Shaw

79. “Lock up your libraries if you like; but there is no gate, no lock, no bolt that you can set upon the freedom of my mind.”

— Virginia Woolf

80. “They say a little knowledge is a dangerous thing, but it’s not one half so bad as a lot of ignorance.”

— Terry Pratchett

81. “Doubt is the origin of wisdom.”

— René Descartes

82. “Knowledge that is not put into practice is like food that is not digested.”

— Sathya Sai Baba

83. “The truth is that money doesn’t make you rich; knowledge does.”

— Robert T. Kiyosaki

84. “Not-knowing is true knowledge. Presuming to know is a disease. First realize that you are sick; then you can move toward health.”

— Lao Tzu

85. “No wealth like education and no poverty like ignorance.”

— Ali ibn Abi Talib

86. “The way of success is the way of continuous pursuit of knowledge.”

— Napoleon Hill

87. “The only true wisdom is in knowing you know nothing.”

— Socrates

88. “If you don’t like to read, you haven’t found the right book.”

— J.K. Rowling

89. “If you’re scientifically literate, the world looks very different to you, and that understanding empowers you.”

— Neil deGrasse Tyson

90. “He who opens a school door, closes a prison.”

— Victor Hugo

91. “If I am walking with two other men, each of them will serve as my teacher. I will pick out the good points of the one and imitate them, and the bad points of the other and correct them in myself.”

— Confucius

92. “There are known knowns. These are things we know that we know. There are known unknowns. That is to say, there are things that we know we don’t know. But there are also unknown unknowns. There are things we don’t know we don’t know.”

— Donald Rumsfeld

93. “Know yourself to improve yourself.”

— Auguste Comte

94. “Learn something new. Try something different. Convince yourself that you have no limits.”

— Brian Tracy

95. “No one was ever injured by the truth; but he who persists in self-deception and ignorance is injured.”

— Marcus Aurelius

96. “An investment in knowledge always pays the best interest.”

— Benjamin Franklin

97. “All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind.”

— Swami Vivekananda

98. “Science is organized knowledge. Wisdom is organized life.”

— Immanuel Kant

99. “I am a part of everything that I have read.”

— Theodore Roosevelt

100. “Ignorance is a virus. Once it starts spreading, it can only be cured by reason. For the sake of humanity, we must be that cure.”

— Neil deGrasse Tyson