Top 280 Michio Kaku Quotes (2025 Update)
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151. “White lies, in fact, are like a grease that makes society run smoothly.”

— Michio Kaku

152. “Everyone takes the limits of his own vision for the limits of the world. – ARTHUR SCHOPENHAUER.”

— Michio Kaku

153. “Of these, one and only one method has proven to extend the life span of animals, sometimes even doubling it. It is caloric restriction, or severely limiting the intake of calories in an animal’s diet.”

— Michio Kaku

154. “Science, however, is never conducted as a popularity contest, but instead advances through testable, reproducible, and falsifiable theories.”

— Michio Kaku

155. “Everything that has meaning is the result of struggle and sacrifice, and is worth fighting for.”

— Michio Kaku

156. “In conclusion, negative energy does exist, and if enough negative energy could somehow be collected, we could, in principle, create a wormhole machine or a warp drive engine, fulfilling some of the wildest fantasies of science fiction.”

— Michio Kaku

157. “Theories have four stages of acceptance: i. this is worthless nonsense; ii. this is interesting, but perverse; iii. this is true, but quite unimportant; iv. I always said so. – J. B. S. HALDANE, 1963.”

— Michio Kaku

158. “Using MRI scans, scientists can now read thoughts circulating in our brains. Scientists can also insert a chip into the brain of a patient who is totally paralyzed and connect it to a computer, so that through thought alone that patient can surf the web, read and write e-mails, play video games, control their wheelchair, operate household appliances, and manipulate mechanical arms. In fact, such patients can do anything a normal person can do via a computer.”

— Michio Kaku

159. “Either we are alone in the universe, or we are not. Either thought is frightening. –ARTHUR C. CLARKE.”

— Michio Kaku

160. “It is impossible to travel faster than the speed of light, and certainly not desirable, as one’s hat keeps blowing off. – WOODY ALLEN.”

— Michio Kaku

161. “Even with a rigorous exercise program, after a year on the space station, the bones and muscles of Russian cosmonauts are so atrophied that they can barely crawl like babies when they first return to Earth.”

— Michio Kaku

162. “Consciousness determines existence.”

— Michio Kaku

163. “And Thomas Watson, chairman of IBM, said in 1943, “I think there is a world market for maybe five computers.”

— Michio Kaku

164. “The brain, like it or not, is a machine. Scientists have come to that conclusion, not because they are mechanistic killjoys, but because they have amassed evidence that every aspect of consciousness can be tied to the brain. – STEVEN PINKER.”

— Michio Kaku

165. “Negative energy may seem like the holy grail to a physicist building a starship, but for a nanotechnologist, the Casimir force is so strong at the atomic level that it becomes a nuisance.”

— Michio Kaku

166. “Margaret Geller, a professor at Harvard University, said, “I guess my view of life is that you live your life and it’s short. The thing is to have as rich an experience as you possibly can. That’s what I’m trying to do. I’m trying to do something creative. I try to educate people.”

— Michio Kaku

167. “And at the speed of light, you have taken the fastest possible journey to the stars. From your point of view, the trip is instantaneous.”

— Michio Kaku

168. “Reality has always proved to be much more sophisticated and subtle than any preconceived philosophy.”

— Michio Kaku

169. “If at first an idea does not sound absurd, then there is no hope for it.”

— Michio Kaku

170. “Sometimes I think that the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us. – BILL WATTERSON.”

— Michio Kaku

171. “But if I make an observation, what is to determine which state I am in? This means that someone else has to observe me to collapse my wave function.”

— Michio Kaku

172. “Some scientists have gone further and have speculated that there is a “God gene” that predisposes the brain to be religious. Since most societies have created a religion of some sort, it seems plausible that our ability to respond to religious feelings might be genetically programmed into our genome.”

— Michio Kaku

173. “Given that humanity must one day flee the solar system to the nearby stars to survive, or perish, the question is: how will we get there? The nearest star system, Alpha Centauri, is over 4 light-years away. Conventional chemical propulsion rockets, the workhorses of the current space program, barely reach 40,000 miles per hour. At that speed it would take 70,000 years just to visit the nearest star.”

— Michio Kaku

174. “Roughly speaking, the greater the value of the metric tensor, the greater the crumpling of the sheet. No mattet how crumpled the sheet of paper, the metric tensor gives us a simple means of measuring its curvature at any point. If we flattened the crumpled sheet completely, then we would retrieve the formula of Pythagoras.”

— Michio Kaku

175. “It is remarkable that a gigantic, city-size computer is required to simulate a piece of human tissue that weighs three pounds, fits inside your skull, raises your body temperature by only a few degrees, uses twenty watts of power, and needs only a few hamburgers to keep it going.”

— Michio Kaku

176. “This world may be a phantasm and existence may be merely a dream, but this dream or phantasm to me is real enough if using reason well we are never deceived by it.”

— Michio Kaku

177. “You can always spot the scientist at a strip club, because he is the only one examining the audience.”

— Michio Kaku

178. “Fourth is Lambda, the cosmological constant, which determines the acceleration of the universe.”

— Michio Kaku

179. “I concluded that, unhappily, I’d been born into a world dominated by a rampaging monster called ‘law’ that was both all-powerful and all-stupid.”

— Michio Kaku

180. “In other words, our destiny is to become the gods that we once feared and worshipped. Science will give us the means by which we can shape the universe in our image. The question is whether we will have the wisdom of Solomon to accompany this vast celestial power.”

— Michio Kaku

181. “The lesson here is that it is very dangerous to bet against the future.”

— Michio Kaku

182. “Mirror neurons are essential for mimicry and also for empathy, giving us the ability not only to copy the complex tasks performed by others but also to experience the emotions that person must be feeling. Mirror neurons were thus probably essential for our evolution as human beings, since cooperation is essential for holding the tribe together.”

— Michio Kaku

183. “The handsome and the beautiful may earn the admiration of society, but all the wondrous inventions of the future are a by-product of the unsung, anonymous scientists.”

— Michio Kaku

184. “Even if we mortgage the next 100 years of generations of human beings, we would not have enough energy to build a Death Star.”

— Michio Kaku

185. “In other words, symmetry is the preservation of the shape of an object even after we deform or rotate it. Several kinds of symmetries occur repeatedly in nature. The first is the symmetry of rotations and reflections.”

— Michio Kaku

186. “A careful analysis of the DNA within the mitochondria indicates that errors are indeed concentrated here. The hope is that one day scientists might use the cells’ own repair mechanisms to reverse the buildup of errors in the mitochondriaand therefore prolong the cells’ useful life.”

— Michio Kaku

187. “Nature is like a work by Bach or Beethoven, often starting with a central theme and making countless variations on it that are scattered throughout the symphony. By this criterion, it appears that strings are not fundamental concepts in nature.”

— Michio Kaku

188. “If our brains were simple enough to be understood, we wouldn’t be smart enough to understand them. – ANONYMOUS.”

— Michio Kaku

189. “Stephen Hawking has proven a general theorem stating that all solutions of Einstein’s equations that allow faster-than-light travel must involve negative matter or energy.”

— Michio Kaku

190. “We are now entering a new golden age of neuroscience.”

— Michio Kaku

191. “At rest, we know that its circumference is equal to p times the diameter. Once the merry-go-round is set into motion, however, the outer rim travels faster than the interior and hence, according to relativity, should shrink more than the interior, distorting the shape of the merry-go-round. This means that the circumference has shrunk and is now less than p times the diameter; that is, the surface is no longer flat. Space is curved.”

— Michio Kaku

192. “Telling a lie causes more centres of the brain to light up than telling the truth. Telling a lie implies that you know the truth but are thinking of the lie and its myriad consequences, which requires more energy than telling the truth.”

— Michio Kaku

193. “Social animals, on the other hand, are more intelligent than those with just a reptilian brain.”

— Michio Kaku

194. “John Perry Barlow, poet and lyricist for the Grateful Dead, once said, “Relying on the government to protect your privacy is like asking a peeping tom to install your window blinds.”

— Michio Kaku

195. “To make Harry Potter invisible, one would have to liquefy him, boil him to create steam, crystallize him, heat him again, and the cool him, all of which would be quite difficult to accomplish, even for a wizard.”

— Michio Kaku

196. “I sometimes think about how easy it is for a nation to slip into complacency and ruin after decades of basking in the sun. Since science is the engine of prosperity, nations that turn their backs on science and technology eventually enter a downward spiral.”

— Michio Kaku

197. “The olfactory sensors of dogs, he said, had evolved over millions of years to be able to detect a handful of molecules, and that kind of sensitivity is extremely difficult to match, even with our most finely tuned sensors. It’s likely that we will continue to rely on dogs at airports for the foreseeable future.”

— Michio Kaku

198. “The physicist Niels Bohr was fond of saying, “Prediction is very hard to do. Especially about the future.”

— Michio Kaku

199. “Rotating in four-dimensional space unifies the concept of space and time, turning one into the other as the velocity is increased. This beautiful, elegant concept, that symmetry unifies seemingly dissimilar entities into a pleasing, harmonious whole, guided Einstein for the next fifty years.”

— Michio Kaku

200. “Men imagine gods to be born, and to have clothes and voices and shapes like theirs... Yea, the gods of the Ethiopians are black and flat-nosed, and the gods of the Thracians are red-haired and blue-eyed.”

— Michio Kaku