Top 200 Science Quotes (2025 Update)
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101. “Every star may be a sun to someone.”

— Carl Sagan

102. “One can’t prove that God doesn’t exist, but science makes God unnecessary. The laws of physics can explain the universe without the need for a creator.”

— Stephen Hawking

103. “There is no subject more captivating, more worthy of study, than nature. To understand this great mechanism, to discover the forces which are active, and the laws which govern them, is the highest aim of the intellect of man.”

— Nikola Tesla

104. “We are not figuratively, but literally Stardust.”

— Neil deGrasse Tyson

105. “People who wish to analyze nature without using mathematics must settle for a reduced understanding.”

— Richard P. Feynman

106. “We are stuck with technology when what we really want is just stuff that works.”

— Douglas Adams

107. “I cannot exaggerate the effect of this marvelous sight on my childish imagination. Day after day I asked myself what is electricity and found no answer. Eighty years have gone by since and I still ask the same question, unable to answer it.”

— Nikola Tesla

108. “I think I can safely say that nobody understands Quantum Mechanics.”

— Richard P. Feynman

109. “There are naive questions, tedious questions, ill-phrased questions, questions put after inadequate self-criticism. But every question is a cry to understand the world. There is no such thing as a dumb question.”

— Carl Sagan

110. “It is far better to grasp the universe as it really is than to persist in delusion, however satisfying and reassuring.”

— Carl Sagan

111. “Life would be tragic if it weren’t funny.”

— Stephen Hawking

112. “Experiment is the sole judge of the validity of any idea.”

— Richard P. Feynman

113. “Science can explain the universe without the need for a Creator.”

— Stephen Hawking

114. “The Universe in a Nutshell.”

— Stephen Hawking

115. “The world is a dynamic mess of jiggling things.”

— Richard P. Feynman

116. “Chemistry begins in the stars. The stars are the source of the chemical elements, which are the building blocks of matter and the core of our subject.”

— Peter Atkins

117. “Astronomy compels the soul to look upwards and leads us from this world to another.”

— Plato

118. “Better by far to embrace the hard truth than a reassuring fable. If we crave some cosmic purpose, then let us find ourselves a worthy goal.”

— Carl Sagan

119. “In nature we never see anything isolated, but everything in connection with something else which is before it, beside it, under it and over it.”

— Johann Wolfgang von Goethe

120. “So Einstein was wrong when he said, “God does not play dice.” Consideration of black holes suggests, not only that God does play dice, but that he sometimes confuses us by throwing them where they can’t be seen.”

— Stephen Hawking

121. “We each exist for but a short time, and in that time explore but a small part of the whole universe.”

— Stephen Hawking

122. “It is a simple feat of scientific, electrical engineering – only expensive – oh blind, faint-hearted, doubting world.”

— Nikola Tesla

123. “The day we stop exploring is the day we commit ourselves to live in a stagnant world, devoid of curiosity, empty of dreams.”

— Neil deGrasse Tyson

124. “Science and everyday life cannot and should not be separated.”

— Rosalind Franklin

125. “It is no good getting furious if you get stuck. What I do is keep thinking about the problem but work on something else. Sometimes it is years before I see the way forward. In the case of information loss and black holes, it was 29 years.”

— Stephen Hawking

126. “I’m not saying I’m gonna change the world, but I guarantee that I will spark the brain that will change the world.”

— Tupac Shakur

127. “Nature’s great book is written in mathematics.”

— Galileo Galilei

128. “SCIENCE is a part of EVERYONE’S everyday life.”

— Bill Nye

129. “People like it when they understand something that they previously thought they couldn’t understand. It’s a sense of empowerment.”

— Neil deGrasse Tyson

130. “The notion that science and spirituality are somehow mutually exclusive does a disservice to both.”

— Carl Sagan

131. “Scientific rationalism is the crowning glory of the human spirit.”

— Richard Dawkins

132. “We find ourselves in a bewildering world. We want to make sense of what we see around us and to ask: What is the nature of the universe? What is our place in it and where did it and we come from? Why is it the way it is?”

— Stephen Hawking

133. “All civilizations become either spacefaring or extinct.”

— Carl Sagan

134. “A physicist is just an atom’s way of looking at itself.”

— Niels Bohr

135. “I don’t think the human race will survive the next thousand years, unless we spread into space. There are too many accidents that can befall life on a single planet. But I’m an optimist. We will reach out to the stars.”

— Stephen Hawking

136. “I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forego their use.”

— Galileo Galilei

137. “By far the best proof is experience.”

— Francis Bacon

138. “For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.”

— Richard P. Feynman

139. “I would like nuclear fusion to become a practical power source. It would provide an inexhaustible supply of energy, without pollution or global warming.”

— Stephen Hawking

140. “I never guess. It is a shocking habit destructive to the logical faculty.”

— Arthur Conan Doyle

141. “Religion ends and philosophy begins, just as alchemy ends and chemistry begins, and astrology ends and astronomy begins.”

— Richard Dawkins

142. “Extraordinary claims require extraordinary evidence.”

— Carl Sagan

143. “When Kepler found his long-cherished belief did not agree with the most precise observation, he accepted the uncomfortable fact. He preferred the hard truth to his dearest illusions, that is the heart of science.”

— Carl Sagan

144. “I believe everyone should have a broad picture of how the universe operates and our place in it. It is a basic human desire. And it also puts our worries in perspective.”

— Stephen Hawking

145. “All truths are easy to understand once they are discovered; the point is to discover them.”

— Galileo Galilei

146. “Science is not perfect. It’s often misused; it’s only a tool, but it’s the best tool we have. Self-correcting, ever changing, applicable to everything: with this tool, we vanquish the impossible.”

— Carl Sagan

147. “Time and space are finite in extent, but they don’t have any boundary or edge. They would be like the surface of the earth, but with two more dimensions.”

— Stephen Hawking

148. “We are one species. We are starstuff.”

— Carl Sagan

149. “Nature and nature’s laws lay hid in the night. God said, Let Newton be! and all was light!”

— Alexander Pope

150. “So long as the universe had a beginning, we could suppose it had a creator. But if the universe is really completely self-contained, having no boundary or edge, it would have neither beginning nor end: it would simply be. What place, then, for a creator?”

— Stephen Hawking