Stephen Hawking Quotes.

21. "In his eyes shone the reflection of the most beautiful planet in the Universe---a planet that is not too hot and not too cold; that has liquid water on the surface and where the gravity is just right for human beings and the atmosphere is perfect for them to breathe; where there are mountains and deserts and oceans and islands and forests and trees and birds and plants and animals and insects and people---lots and lots of people. Where there is life. Some of it, possibly, intelligent."
- Stephen Hawking, George's Cosmic Treasure Hunt

22. "one has a singularity contained within a region of space-time known as a black hole."
- Stephen Hawking, The Theory Of Everything

23. "The discovery that the universe was expanding was one of the great intellectual revolutions of the twentieth century."
- Stephen Hawking, The Theory Of Everything

24. "El afán por descubrir alimenta la creatividad en todos los campos, no sólo en la ciencia. Si llegáramos a la meta, el espíritu humano se marchitaría y moriría."
- Stephen Hawking, The Universe in a Nutshell

25. "What you have told us is rubbish. The world is really a flat plate supported on the back of a giant tortoise."
- Stephen Hawking, A Briefer History of Time

26. "It's the gravity that shapes the large scale structure of the universe, even though it is the weakest of four categories of forces."
- Stephen Hawking, A Briefer History of Time

27. "Intelligence is the ability to adapt to change. Stephen Hawking"
- Stephen Hawking, A Briefer History of Time

28. "The uncertainty principle signaled an end to Laplace's dream of a theory of science, a model of the universe that would be completely deterministic. We certainly cannot predict future events exactly if we cannot even measure the present state of the universe precisely! We could still imagine that there is a set of laws that determine events completely for some supernatural being who, unlike us, could observe the present state of the universe without disturbing it. However, such models of the universe are not of much interest to us ordinary mortals. It seems better to employ the principle of economy known as Occam's razor and cut out all the features of the theory that cannot be observed."
- Stephen Hawking, A Briefer History of Time

29. "If a star were a grain of salt, you could fit all the stars visible to the naked eye on a teaspoon, but all the stars in the universe would fill a ball more than eight miles wide."
- Stephen Hawking, A Briefer History of Time

30. "an elipse is an elongated circle"
- Stephen Hawking, A Briefer History of Time