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"Time travel may be achieved one day, or it may not. But if it is, it should not require any fundamental change in world-view, at least for those who broadly share the world view I am presenting in this book."
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"Clever nations are the ones who keep changing their governments! Because power must change hands otherwise it will get spoiled and rot!"
"But in the meantime I became accustomed to the writing life and it would be hard to change now - partly because of the salary cut if I went to my other love, teaching; and partly because I still have stories to tell, even though it isn't all that fun doing the work anymore."
"America was never designed to be fixed forever, but was meant to be fluid and evolving."
"Human beings are the only animal that thinks they change who they are simply by moving to a different place. Birds migrate, but it's not quite the same thing."
"A personality alters itself through a series of self-referential experiences. We are not the same as the day before. Much as a person can never set foot in exactly the same river on any given day, we are different each day. Yesterday made us, but the past cannot contain nor restrain us. We can never mentally scroll backward and be who we used to be. We must move forward in the stream of life until the day that our life force dries up and we return to dust."
"Scholars postulate that the only thing that does not change is the every varying world. Other renowned thinkers postulate that the natural state of all things is to remain the same. Perhaps both propositions are vital. Perhaps it is normal to resist change because it threatens our present state of being. Perhaps it is natural to attempt to preserve the status quo because we are part of the external world and we wish to persevere, not expire. Perhaps it is inevitable that we all change. The natural forces are impossible to blunt."
"In your winter you deny your spring."
Explore more quotes by David Deutsch
"I myself believe that there will one day be time travel because when we find that something isn't forbidden by the over-arching laws of physics we usually eventually find a technological way of doing it."
"The truly privileged theories are not the ones referring to any particular scale of size or complexity, nor the ones situated at any particular level of the predictive hierarchy, but the ones that contain the deepest explanations."
"Our best theories are not only truer than common sense, they make more sense than common sense."
"Quantum computation is... a distinctively new way of harnessing nature... It will be the first technology that allows useful tasks to be performed in collaboration between parallel universes."
"The overwhelming majority of theories are rejected because they contain bad explanations, not because they fail experimental tests."
"It is possible to build a virtual-reality generator whose repertoire includes every possible environment."
"Time travel may be achieved one day, or it may not. But if it is, it should not require any fundamental change in world-view, at least for those who broadly share the world view I am presenting in this book."
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