# Theory quotes

### Theory quotes by Nikola Tesla

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Efficiency, Scientists, Achievements
If he [Thomas Edison] had a needle to find in a haystack, he would not stop to reason where it was most likely to be, but would proceed at once with the feverish diligence of a bee, to examine straw after straw until he found the object of his search. ...just a little theory and calculation would have saved him ninety percent of his labor.
The recurrence of a phenomenon like [Thomas] Edison is not very likely. The profound change of conditions and the ever increasing necessity of theoretical training would seem to make it impossible. He will occupy a unique and exalted position in the history of his native land, which might well be proud of his great genius and undying achievements in the interest of humanity.

### Theory quotes by Brian Greene

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Understanding, Confidence, Search, Experiment, Confusion, Science, Universe, Physics, Success, Inventions
I believe the process of going from confusion to understanding is a precious, even emotional, experience that can be the foundation of self-confidence.
String theory has the potential to show that all of the wondrous happenings in the universe - from the frantic dance of subatomic quarks to the stately waltz of orbiting binary stars; from the primordial fireball of the big bang to the majestic swirl of heavenly galaxies - are reflections of one, grand physical principle, one master equation.
Einstein's theory of relativity does a fantastic job for explaining big things.

Quantum mechanics is fantastic for the other end of the spectrum - for small things. Before the discovery of quantum mechanics, the framework of physics was this: If you tell me how things are now, I can then use the laws of physics to calculate, and hence predict, how things will be later. If the theory turns out to be right, that will be tremendously thick and tasty icing on the cake.

Quantum mechanics is fantastic for the other end of the spectrum - for small things. Before the discovery of quantum mechanics, the framework of physics was this: If you tell me how things are now, I can then use the laws of physics to calculate, and hence predict, how things will be later. If the theory turns out to be right, that will be tremendously thick and tasty icing on the cake.

The math of quantum mechanics and the math of general relativity, when they confront one another, they are ferocious antagonists and the equations don't work.
A unified theory would put us at the doorstep of a vast universe of things that we could finally explore with precision.
The real reason why general relativity is widely accepted is because it made predictions that were borne out by experimental observations.
Supersymmetry is a theory which stipulates that for every known particle there should be a partner particle. For instance, the electron should be paired with a supersymmetric "selectron," quarks ought to have "squark" partners, and so on.
String theory envisions a multiverse in which our universe is one slice of bread in a big cosmic loaf. The other slices would be displaced from ours in some extra dimension of space.
They imply that a region of space the size of a pea would be stretched larger than the observable universe in a time interval so short that the blink of an eye would overestimate it by a factor larger than a million billion billion billion.