This idea was introduced in Einstein's 1907 article " Principle of Relativity and Gravitation " and later developed in 1911.

* Albert Einstein, On the Electrodynamics of Moving Bodies, included in The Principle of Relativity, page 38.

The work of Lorentz was mathematically perfected by Henri Poincaré who formulated on many occasions the Principle of Relativity and tried to harmonize it with electrodynamics.

A more mathematical statement of the Principle of Relativity made later by Einstein, which introduces the concept of simplicity not mentioned above is:

The Principle of Relativity with Applications to Physical Science.

* Synge, John L. " Whitehead's Principle of Relativity " on arXiv. org

Maya is not only the cosmic illusion: from a higher standpoint, Maya is also the Infinite, the Divine Relativity or else the feminine aspect ( mahashakti ) of the Supreme Principle.

Previously, no one had paid any attention to the different operations used because they always produced the same results, but the key insight of Einstein was to posit the Principle of Equivalence that the two operations would always produce the same result because they were equivalent at a deep level, and work out the implications of that assumption, which is the General Theory of Relativity.

One of Dover's best sellers was Albert Einstein's The Principle of Relativity, which Einstein reluctantly agreed to republish despite his concerns that it was outdated.

* Principle of Relativity is invariance with respect to constant velocity.

* Principle of Relativity

:* Wikisource translation: The Theory of the Rigid Electron in the Kinematics of the Principle of Relativity

And in 1902, Henri Poincaré published the philosophical and popular-science book " Science and Hypothesis ", which included: philosophical assessments on the relativity of space, time, and simultaneity ; the opinion that a violation of the Relativity Principle can never be detected ; the possible non-existence of the aether but also some arguments supporting the aether ; many remarks on non-Euclidean geometry.

Thus the question arose whether the Electromagnetic conception of the world ( compatible with Abraham's theory ) or the Relativity Principle ( compatible with Lorentz's Theory ) was correct.

In a September 1904 lecture in St. Louis named The Principles of Mathematical Physics, Poincaré draw some consequences from Lorentz's theory and defined ( in modification of Galileo's Relativity Principle and Lorentz's Theorem of Corresponding States ) the following principle: " The Principle of Relativity, according to which the laws of physical phenomena must be the same for a stationary observer as for one carried along in a uniform motion of translation, so that we have no means, and can have none, of determining whether or not we are being carried along in such a motion.

However, he critically noted that the Relativity Principle, Newton's action and reaction, the Conservation of Mass, and the Conservation of Energy are not fully established and are even threatened by some experiments.

He identified two fundamental principles, the Principle of Relativity and the Principle of the Constancy of Light, which served as the axiomatic basis of his theory.

Regarding the Relativity Principle, the moving magnet and conductor problem ( possibly after reading a book of August Föppl ) and the various negative aether drift experiments were important for him to accept that principle — but he denied any significant influence of the most important experiment: the Michelson-Morley experiment.

Other possible sources are Poincaré's Science and Hypothesis, where he described the Principle of Relativity and which was read by Einstein in 1904, and the writings of Max Abraham, from whom he borrowed the terms " Maxwell-Hertz equations " and " longitudinal and transverse mass ".

We will raise this conjecture ( the purport of which will hereafter be called the " Principle of Relativity ") to the status of a postulate, and also introduce another postulate, which is only apparently irreconcilable with the former, namely, that light is always propagated in empty space with a definite velocity c which is independent of the state of motion of the emitting body.

** Beyond the Pleasure Principle –

* " The Poetic Principle " ( 1848 ) – Essay

* The Principle of Invariant Light Speed – "... light is always propagated in empty space with a definite velocity c which is independent of the state of motion of the emitting body.

His book The Dilbert Principle – A Cubicle ’ s Eye View of Bosses, Meetings, Management Fads & Other Workplace Afflictions discusses the foibles of management and their plans as depicted in the Dilbert comic strips by Scott Adams.

" – from The Pleasure Principle – for its hook.

* 1867 – Lister publishes Antiseptic Principle of the Practice of Surgery, based partly on Pasteur's work

Denning, The Locality Principle, Communications of the ACM, Volume 48, Issue 7, ( 2005 ), Pages 19 – 24

Philosophical schools such as Advaita ( non-dualism ) see the " spirit " within each living entity as being fully identical with Brahman – the Principle, whereas other schools such as Dvaita ( dualism ) differentiate between the individual atma in living beings, and the Supreme atma ( Paramatma ) as being at least partially separate beings.

*" Prom Theme " – Joan of Arcadia ( The Uncertainty Principle ), Gossip Girl ( Episode 2. 21 )

Dr. Laurence Johnston Peter ( September 16, 1919 – January 12, 1990 ) was an educator and " hierarchiologist ", best known to the general public for the formulation of the Peter Principle.

* Archimedes ' Principle – background and experiment

* 1911 – 12 Bernard Bosanquet The Principle of Individuality and Value, ISBN 0-527-10036-6

* John Edmondson, 2nd Baron Sandford ( 1920 – 2009 )-naval commander, clergyman, politician ( Sandford Principle )

Three of his other hymns – " A Debtor to Mercy Alone ", " Deathless Principle, Arise " and " Object of My First Desire " – are still occasionally sung today, though all three are far less popular than " Rock of Ages ".

# Thomas Robert Malthus – An Essay on the Principle of Population

# Sigmund Freud – The Interpretation of Dreams ; Three Essays to the Theory of Sex ; Introduction to Psychoanalysis ; Beyond the Pleasure Principle ; Group Psychology and the Analysis of the Ego ; The Ego and the Id ; Civilization and Its Discontents ; New Introductory Lectures on Psychoanalysis

: 1938 – 1947 ) ( The Principle of Hope, MIT Press, 1986 )

In a glossary of terms written by the founder, Mary Baker Eddy, matter is defined as illusion, and when defining ' I, or Ego ' as the divine in relationship with individual identity, she writes " There is but one I, or Us, but one divine Principle, or Mind, governing all existence " – continuing – ".

* Taoism – The Wu-Wei Principle by Ted Kardash.

The third principle – the Monitoring Intensity Principle – is complementary to the second, in that situations in which the optimal intensity of incentives is high corresponds highly to situations in which the optimal level of monitoring is also high.

Historically, Fermat's principle has served as a guiding principle in the formulation of physical laws with the use of variational calculus ( see Principle of least action ).

Examples of observed phenomena often described as laws include the Titius-Bode law of planetary positions, Zipf's law of linguistics, Thomas Malthus's Principle of Population or Malthusian Growth Model, Moore's law of technological growth.

; Principle of government or the kawanatanga principle: Article 1 gives expression to the right of the Crown to make laws and its obligation to govern in accordance with constitutional process.

The Second one is called The Principle of ministerial autonomy in which the Chancellor prepares everything for the legislative and proposes other laws threw the Cabinet and the third one is called Cabinet Principle were this calls for disagreements between federal ministers over Jurisdictional or Budgeting relative things, in which is settled by the Cabinet.

Karl Marx and Friedrich Engels attribute the doctrine to Lassalle ( notably in Critique of the Gotha Programme ( 1875 ), Marx ), crediting the idea to Thomas Malthus in his work, An Essay on the Principle of Population, and the terminology to Goethe's " great, eternal iron laws " in Das Göttliche.

More fundamentally ,'t Hooft and Susskind used the laws of black hole thermodynamics to argue for a general Holographic Principle of nature, which asserts that consistent theories of gravity and quantum mechanics must be lower dimensional.

He didn't reject the idea that positions in space-time could never be completely known but didn't want to allow the Uncertainty Principle to necessitate a seemingly random, non-deterministic mechanism by which the laws of physics operated.

Diffraction Limit The detail of a physical object that an optical instrument can reproduce in an image has limits that are mandated by inviolate laws of physics, whether formulated by the diffraction equations in the wave theory of light or the Uncertainty Principle for photons in quantum mechanics.

* Principle of regularity: Regularity can be defined as conformity to enforced rules and laws.

Darwin read Malthus's Essay on the Principle of Population in the context of his findings about species relating to localities, enquiries into animal breeding, and ideas of Natural " laws of harmony ".

Biotonic laws may also be considered as local instances of global organismic or organismal principles, such as the Organismic Principle of Natural Selection.

The Principle of Correspondence embodies the idea that there is always a correspondence between the laws of phenomena of the various " planes " of being and life.