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"As you say, the way string theory requires all these extra dimensions and this comes from certain consistency requirements about how string should behave and so on."
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Exlpore more Consistency quotes

"Pressed caviar has the consistency of chilled tar."

"When I speak of "cycles," I am referring to lengthy intervals of relative homogeneity, if not in the resolving of problems, than at least with respect to the consistency of their capacity to productively irritate."

"Consistency simplifies the problem more than hard work of one time because no problem cannot possibly beat you everyday."

"I try to be the same person I was yesterday."

"Good acting is consistency of performance."

"I can think of a lot of words to describe Senator Kerry's position on Iraq; "consistent" is not one of them."

"Harsh counsels have no effect; they are like hammers, which are always repulsed by the anvil."

"Constancy is the complement of all other human virtues."
Explore more quotes by Roger Penrose


"Ordinary photons do have spin, they have a notion of helicity so they spin around their direction on motion."


"My own way of thinking is to ponder long and I hope deeply on problems and for a long time which I keep away for years and years and I never really let them go."


"In the book, I make the point that here we have string theory and here we have twistor theory and we don't know if either one of them is the right approach to nature."


"Well, I don't know if I can comment on Kant or Hegel because I'm no real philosopher in the sense of knowing what these people have said in any detail so let me not comment on that too much."


"This book is about physics and its about physics and its relationship with mathematics and how they seem to be intimately related and to what extent can you explore this relationship and trust it."


"Well I didn't actually see the Matrix but I've seen other movies where with similar sorts of themes."


"So what I'm saying is why don't we think about changing Schrodinger's equation at some level when masses become too big at the level that you might have to worry about Einstein's general relativity."


"Well, gauge theory is very fundamental to our understanding of physical forces these days. But they are also dependent on a mathematical idea, which has been around for longer than gauge theory has."


"The idea is if you use those two shapes and try to colour the plane with them so the colours match, then the only way that you can do this is to produce a pattern which never repeats itself."
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