„I’m sorry to disappoint science fiction fans, but if information is preserved, there is no possibility of using black holes to travel to other universes. If you jump into a black hole, your mass energy will be returned to our universe but in a mangled form which contains the information about what you were like but in a state where it can not be easily recognized. It is like burning an encyclopedia. Information is not lost, if one keeps the smoke and the ashes. But it is difficult to read. In practice, it would be too difficult to re-build a macroscopic object like an encyclopedia that fell inside a black hole from information in the radiation, but the information preserving result is important for microscopic processes involving virtual black holes.“

— Stephen Hawking

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„I used to think that information was destroyed in black holes. But the AdS/CFT correspondence led me to change my mind. This was my biggest blunder, or at least my biggest blunder in science.“
— Stephen Hawking
„A good bookshop is just a genteel Black Hole that knows how to read.“
— Terry Pratchett
„With the certitude of a true believer, Vellya Paapen had assured the twins that there was no such thing in the world as a black cat. He said that there were only black cat chaped holes in the universe.“
— Arundhati Roy
„When you look at yourself from a universal standpoint, something inside always reminds or informs you that there are bigger and better things to worry about.“
— Albert Einstein
„The subject of this book is the structure of space-time on length-scales from 10-13cm, the radius of an elementary particle, up to 1028cm, the radius of the universe. …we base our treatment on Einstein's General Theory of Relativity. This theory leads to two remarkable predictions about the universe: first, that the final fate of massive stars is to collapse behind an event horizon to form a 'black hole' which will contain a singularity; and secondly, that there is a singularity in our past which constitutes, in some sense, a beginning to the universe.“
— Stephen Hawking
„The black is a black man; that is, as the result of a series of aberrations of affect, he is rooted at the core of a universe from which he must be extricated.“
— Frantz Fanon