"Learn from yesterday, live for today, hope for tomorrow. The important thing is to not stop questioning."
— Albert Einstein (Relativity: The Special and the General Theory)

"In the beginning there was nothing, which exploded."
— Terry Pratchett (Lords and Ladies)

"Nothing happens until something moves."
— Albert Einstein

"The thinking that has gotten us to where we are will be insufficient to solve the problems created in getting us here."
— Albert Einstein

"It is often stated that of all the theories proposed in this century, the silliest is quantum theory. In fact, some say that the only thing that quantum theory has going for it is that it is unquestionably correct."
— Michio Kaku (Hyperspace: A Scientific Odyssey Through Parallel Universes, Time Warps, and the Tenth Dimension)

"What I am going to tell you about is what we teach our physics students in the third or fourth year of graduate school... It is my task to convince you not to turn away because you don't understand it. You see my physics students don't understand it... That is because I don't understand it. Nobody does."
— Richard P. Feynman (QED: The Strange Theory of Light and Matter)

"The release of atomic power has changed everything except our way of thinking ... the solution to this problem lies in the heart of mankind. If only I had known, I should have become a watchmaker. (1945) "
— Albert Einstein

"The very nature of the quantum theory ... forces us to regard the space-time coordination and the claim of causality, the union of which characterizes the classical theories, as complementary but exclusive features of the description, symbolizing the idealization of observation and description, respectively."
— Niels Bohr

"Happiness is a hound dog in the sun. We aren't on Earth to be happy, but to experience incredible things.

- Hannah Schneider"
— Marisha Pessl

"Man's wobbly little mind isn't equipped for hauling around the great unknowns.

Very few people realize, there's no point chasing after answers to life's important questions. They all have fickle, highly whimsical minds of their own.

Nevertheless. If you're patient, if you don't rush them, when they're ready, they'll smash into you. And don't be surprised if afterward you're speechless and there are cartoon Tweety Birds chirping around your head.

(Gareth van Meer)"
— Marisha Pessl

"It was as if Hannah had sprung a leak and her character, usually so meticulous and contained, was spilling all over the place."
— Marisha Pessl

"Nonsense is that which does not fit into the prearranged patterns which we have superimposed on reality...Nonsense is nonsense only when we have not yet found that point of view from which it makes sense."
— Gary Zukav

"What I have done is to show that it is possible for the way the universe began to be determined by the laws of science. In that case, it would not be necessary to appeal to God to decide how the universe began. This doesn't prove that there is no God, only that God is not necessary."
— Stephen W. Hawking

"Assessing existence while failing to embrace the insights of modern physics would be like wrestling in the dark with an unknown opponent."
— Brian Greene

"Quantum physics is to regular everyday physics as a David Lynch film is to a mainstream blockbuster"
— S Peter Davis

"“How wonderful that we have met with a paradox. Now we have some hope of making progress.” "
— Niels Bohr

"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 W. Hawking (Black Holes and Baby Universes and Other Essays)

"Not only is the Universe stranger than we think, it is stranger than we can think."
— Werner Heisenberg (Across the Frontiers)

"Physicists like to think that all you have to do is say, these are the conditions, now what happens next?"
— Richard P. Feynman

"...quantum mechanics—the physics of our world—requires that you hold such pedestrian complaints in abeyance."
— Brian Greene (The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest for the Ultimate Theory)

"There is a philosophy that says that if something is unobservable -- unobservable in principle -- it is not part of science. If there is no way to falsify or confirm a hypothesis, it belongs to the realm of metaphysical speculation, together with astrology and spiritualism. By that standard, most of the universe has no scientific reality -- it's just a figment of our imaginations."
— Leonard Susskind (The Black Hole War: My Battle with Stephen Hawking to Make the World Safe for Quantum Mechanics)

"God abhors a naked singularity."
— Stephen W. Hawking (A Brief History of Time)

"The first principle of value that we need to rediscover is this: that all reality hinges on moral foundations. In other words, that this is a moral universe, and that there are moral laws of the universe just as abiding as the physical laws. (from "Rediscovering Lost Values")"
— Martin Luther King Jr. (A Knock at Midnight: Inspiration from the Great Sermons of Reverend Martin Luther King, Jr.)

"Quantum theory provides us with a striking illustration of the fact that we can fully understand a connection though we can only speak of it in images and parables."
— Werner Heisenberg

"Those who are not shocked when the first come across quantum theory cannot possibly have understood it."
— Niels Bohr (Volume II - Essays 1932-1957 on Atomic Physics and Human Knowledge)

"...in microphysics the observer interferes with the experiment in a way that can't be measured and that therefore can't be eliminated. No natural laws can be formulated, saying "such-and-such will happen in every case." All the microphysicist can say is "such-and-such is, according to statistical probability, likely to happen." This naturally represents a tremendous problem for our classical physical thinking. It requires a consideration, in a scientific experiment, of the mental outlook of the participant-observer: It could this be said that scientists can no longer hope to describe any aspects or qualities of outer objects in a completely independent, "objective" manner."
— M.-L. von Franz

"...rather than ask why something happened (i.e. what caused it), Jung asked: What did it happen for? This same tendency appears in physics: Many modern physicists are now looking more for "connections" in nature than for causal laws (determinism)."
— M.-L. von Franz

"He was a physicist, more precisely an astrophysicist, diligent and eager but without illusions: the Truth lay beyond, inaccessible to our telescopes, accessible to the initiates. This was a long road which he was traveling with effort, wonderment, and profound joy. Physics was prose: elegant gymnastics for the mind, mirror of Creation, the key to man's dominion over the planet; but what is the stature of Creation, of man and the planet? His road was long and he had barely started up it, but I was his disciple: did I want to follow him?"
— Primo Levi

"God does not play dice with the universe!"

"Stop telling God what to do!

...An exchange between two physicists"
— Albert Einstein and Niels Bohr

"One possibility is: G-d is nothing but the power of the universe to organize itself."
— Lee Smolin

""If you see an antimatter version of yourself running towards you, think twice before embracing.""
— J. Richard Gott (Time Travel in Einstein's Universe: The Physical Possibilities of Travel Through Time)

"Extinction catches Man by surprise because no one can even imagine that such a catastrophe can happen to an intelligent species."
— Bill Gaede (Why God Doesn't Exist)

"We are the last generation of humans on Earth!"
— Bill Gaede (Why God Doesn't Exist)

"The mathematicians are the priests of the modern world."
— Bill Gaede (Why God Doesn't Exist)

"Define the word exist, and you'll know whether God exists."
— Bill Gaede (Why God Doesn't Exist)

"Anyone who believes that the laws of physics are mere social conventions is invited to try transgressing those conventions from the windows of my apartment. (I live on the twenty-first floor.)"
— Alan Sokal

"A mathematician is an individual who constructs space with 0D particles and then places a bowling ball on this invisible canvas to explain how gravity works."
— Bill Gaede (Why God Doesn't Exist)

"A relativist is an individual who doesn't know the difference between an adjective and an adverb."
— Bill Gaede (Why God Doesn't Exist)

"A mathematician is a magician who converts adjectives into nouns: continuous into continuum, infinite into infinity, infinitesimal into location, 0D into point, 1D into line, curved into geodesic..."
— Bill Gaede (Why God Doesn't Exist)

"The earth doesn't move backward (very much) when you walk only because it's much more massive than you are."
— K. C. Cole (Sympathetic Vibrations)

"The simple process of eating and breathing weave all of us together into a vast four-dimensional array. No matter how isolated you may sometimes feel, no matter how lonely, you are never really cut off from the whole."
— Rudy Rucker

"A mathematician is an individual who constructs space with 0D particles and then places a bowling ball on this canvas to show how gravity works."
— Bill Gaede