Top 300 Stephen Hawking Quotes (2025 Update)
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101. “But a machine that was powerful enough to accelerate particles to the grand unification energy would have to be as big as the Solar System – and would be unlikely to be funded in the present economic climate.”

— Stephen Hawking

102. “The doctor who diagnosed me with ALS, or motor neuron disease, told me that it would kill me in two or three years.”

— Stephen Hawking

103. “Science is beautiful when it makes simple explanations of phenomena or connections between different observations.”

— Stephen Hawking

104. “The concern here is that financial services become a kind of tech-led Wild West.”

— Stephen Hawking

105. “People won’t have time for you if you are always angry or complaining.”

— Stephen Hawking

106. “Doing a job RIGHT the first time gets the job done. Doing the job WRONG fourteen times gives you job security.”

— Stephen Hawking

107. “I think the next century will be the century of complexity.”

— Stephen Hawking

108. “Without imperfection, you or I would not exist.”

— Stephen Hawking

109. “We are very, very small, but we are profoundly capable of very, very big things.”

— Stephen Hawking

110. “It matters if you don’t just give up.”

— Stephen Hawking

111. “What was God doing before the divine creation? Was he preparing hell for people who asked such questions?”

— Stephen Hawking

112. “Science is not only a disciple of reason but, also, one of romance and passion.”

— Stephen Hawking

113. “Because there is a law such as gravity, the Universe can and will create itself from nothing.”

— Stephen Hawking

114. “There is a fundamental difference between religion, which is based on authority, and science, which is based on observation and reason. Science will win because it works.”

— Stephen Hawking

115. “In fact, if one considers the possible constants and laws that could have emerged, the odds against a universe that produced life like ours are immense.”

— Stephen Hawking

116. “Time travel may be possible, but it is not practical.”

— Stephen Hawking

117. “My expectations were reduced to zero when I was 21. Everything since then has been a bonus.”

— Stephen Hawking

118. “The increase of disorder or entropy is what distinguishes the past from the future, giving a direction to time.”

— Stephen Hawking

119. “The fact that no one understands you doesn’t mean you’re an artist.”

— Stephen Hawking

120. “We are all different. There is no such thing as a standard or run-of-the-mill human being, but we share the same human spirit.”

— Stephen Hawking

121. “In a world that is in chaos politically, socially and environmentally, how can the human race sustain another 100 years?”

— Stephen Hawking

122. “Time travel used to be thought of as just science fiction, but Einstein’s general theory of relativity allows for the possibility that we could warp space-time so much that you could go off in a rocket and return before you set out.”

— Stephen Hawking

123. “Nuclear weapons need large facilities, but genetic engineering can be done in a small lab. You can’t regulate every lab in the world. The danger is that either by accident or design, we create a virus that destroys us.”

— Stephen Hawking

124. “Although quantum mechanics has been around for nearly 70 years, it is still not generally understood or appreciated, even by those that use it to do calculations.”

— Stephen Hawking

125. “The wise never marry, and when they marry they become otherwise.”

— Stephen Hawking

126. “I have sold more books on physics than Madonna has on sex.”

— Stephen Hawking

127. “Plagiarism saves time.”

— Stephen Hawking

128. “Women. They are a complete mystery.”

— Stephen Hawking

129. “I like physics, but I love cartoons.”

— Stephen Hawking

130. “We are only the temporary custodians of the particles which we are made of. They will go on to lead a future existence in the enormous universe that made them.”

— Stephen Hawking

131. “I believe things cannot make themselves impossible.”

— Stephen Hawking

132. “Science makes god unnecessary.”

— Stephen Hawking

133. “The boundary condition of the universe is that it has no boundary.”

— Stephen Hawking

134. “Nothing cannot exist forever.”

— Stephen Hawking

135. “There should be a better way to start a day than waking up every morning.”

— Stephen Hawking

136. “Our population and our use of the finite resources of planet Earth are growing exponentially, along with our technical ability to change the environment for good or ill.”

— Stephen Hawking

137. “The moment you understand the whole Universe, is the moment you slightly begin to understand the way God’s mind works.”

— Stephen Hawking

138. “In real time, the universe has a beginning and an end at singularities that form a boundary to space-time and at which the laws of science break down.”

— Stephen Hawking

139. “Scientific discovery may not be better than sex, but the satisfaction lasts longer.”

— Stephen Hawking

140. “I do not believe in a personal God.”

— Stephen Hawking

141. “One could imagine such technology outsmarting financial markets, out-inventing human researchers, out-manipulating human leaders, and developing weapons we cannot even understand.”

— Stephen Hawking

142. “My first popular book, ‘A Brief History of Time,’ aroused a great deal of interest, but many found it difficult to understand.”

— Stephen Hawking

143. “The human failing I would most like to correct is aggression. It may have had survival advantage in caveman days, to get more food, territory or partner with whom to reproduce, but now it threatens to destroy us all.”

— Stephen Hawking

144. “Equations are just the boring part of mathematics. I attempt to see things in terms of geometry.”

— Stephen Hawking

145. “Never put off the work till tomorrow what you can put off today.”

— Stephen Hawking

146. “I’d say I don’t believe in God, but I’m afraid He might hear me.”

— Stephen Hawking

147. “Why are we here? Where do we come from? Traditionally, these are questions for philosophy, but philosophy is dead.”

— Stephen Hawking

148. “If at first you don’t succeed, try management.”

— Stephen Hawking

149. “There ought to be something very special about the boundary conditions of the universe and what can be more special than that there is no boundary?”

— Stephen Hawking

150. “I’m here to chew gum and kick some ass, and I’m all out of gum.”

— Stephen Hawking