Action Quote by Max Planck
“The Theory of Relativity confers an absolute meaning on a magnitude which in classical theory has only a relative significance: the velocity of light. The velocity of light is to the Theory of Relativity as the elementary quantum of action is to the Quantum Theory: it is its absolute core.”
About This Quote
Source Book: Relativity: The Special and General Theory by Albert Einstein, 1916
Relativity defines light speed as an absolute constant, giving it a foundational role like Planck’s constant in quantum mechanics.
In simple terms: Light speed is the fixed core of relativity, like Planck’s constant in quantum theory.
Key Takeaway
Recognize absolute constants that anchor theories.
Themes
physics
physics
philosophy
Mood
inquisitive
analytical
Type
scientific
educational
When to use this quote
- teaching physics
- research
- science communication
Key Concepts
constants
foundational principles
Questions to Reflect On
- How do absolute constants shape scientific frameworks?
- What limits arise when constants are redefined?
A Different Perspective
Relativity still depends on experimental verification of constants.
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![“No one must think that Newton’s great creation can be overthrown in any real sense by this [Theory of Relativity] or by any other theory. His clear and wide ideas will for ever retain their significance as the foundation on which our modern conceptions of physics have been built.” quote by Albert Einstein](https://sms4smile.com/quotes/img-quotes/a7a/albert-einstein-33_built_no-one-must-think-that-newton-s-great-cr_591691.jpg)
