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"The basic theory in twistor theory is not to add extra dimensions."
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"The whole theory of the universe is directed unerringly to one single individual."
"The problem is that replacement of Quantum Mechanics by Quantum Field Theory is still very demanding."
"My theory is this; I'm not a political songwriter. I'm an honest songwriter."
"You know very well that unless you're a scientist, it's much more important for a theory to be shapely, than for it to be true."
"I have this theory- that if we're told we're bad, then that's the only ideal we'll ever have."
"My theory of hitting was just to watch the ball as it came in and hit it."
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."
"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."
"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."
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