Joseph Fourier Quotes

True greatness is when your name is like ampere, watt, and fourier—when it's spelled with a lower case letter.

76. David Hume – Treatise on Human Nature; Essays Moral and Political; An Enquiry Concerning Human Understanding 77. Jean-Jacques Rousseau – On the Origin of Inequality; On the Political Economy; Emile – or, On Education, The Social Contract 78. Laurence Sterne – Tristram Shandy; A Sentimental Journey through France and Italy 79. Adam Smith – The Theory of Moral Sentiments; The Wealth of Nations 80. Immanuel Kant – Critique of Pure Reason; Fundamental Principles of the Metaphysics of Morals; Critique of Practical Reason; The Science of Right; Critique of Judgment; Perpetual Peace 81. Edward Gibbon – The Decline and Fall of the Roman Empire; Autobiography 82. James Boswell – Journal; Life of Samuel Johnson, Ll.D. 83. Antoine Laurent Lavoisier – Traité Élémentaire de Chimie (Elements of Chemistry) 84. Alexander Hamilton, John Jay, and James Madison – Federalist Papers 85. Jeremy Bentham – Introduction to the Principles of Morals and Legislation; Theory of Fictions 86. Johann Wolfgang von Goethe – Faust; Poetry and Truth 87. Jean Baptiste Joseph Fourier – Analytical Theory of Heat 88. Georg Wilhelm Friedrich Hegel – Phenomenology of Spirit; Philosophy of Right; Lectures on the Philosophy of History 89. William Wordsworth – Poems 90. Samuel Taylor Coleridge – Poems; Biographia Literaria 91. Jane Austen – Pride and Prejudice; Emma 92. Carl von Clausewitz – On War 93. Stendhal – The Red and the Black; The Charterhouse of Parma; On Love 94. Lord Byron – Don Juan 95. Arthur Schopenhauer – Studies in Pessimism 96. Michael Faraday – Chemical History of a Candle; Experimental Researches in Electricity 97. Charles Lyell – Principles of Geology 98. Auguste Comte – The Positive Philosophy 99. Honoré de Balzac – Père Goriot; Eugenie Grandet 100. Ralph Waldo Emerson – Representative Men; Essays; Journal 101. Nathaniel Hawthorne – The Scarlet Letter 102. Alexis de Tocqueville – Democracy in America 103. John Stuart Mill – A System of Logic; On Liberty; Representative Government; Utilitarianism; The Subjection of Women; Autobiography 104. Charles Darwin – The Origin of Species; The Descent of Man; Autobiography 105. Charles Dickens – Pickwick Papers; David Copperfield; Hard Times 106. Claude Bernard – Introduction to the Study of Experimental Medicine 107. Henry David Thoreau – Civil Disobedience; Walden 108. Karl Marx – Capital; Communist Manifesto 109. George Eliot – Adam Bede; Middlemarch 110. Herman Melville – Moby-Dick; Billy Budd 111. Fyodor Dostoevsky – Crime and Punishment; The Idiot; The Brothers Karamazov 112. Gustave Flaubert – Madame Bovary; Three Stories 113. Henrik Ibsen – Plays 114. Leo Tolstoy – War and Peace; Anna Karenina; What is Art?; Twenty-Three Tales 115. Mark Twain – The Adventures of Huckleberry Finn; The Mysterious Stranger 116. William James – The Principles of Psychology; The Varieties of Religious Experience; Pragmatism; Essays in Radical Empiricism 117. Henry James – The American; The Ambassadors 118. Friedrich Wilhelm Nietzsche – Thus Spoke Zarathustra; Beyond Good and Evil; The Genealogy of Morals;The Will to Power 119. Jules Henri Poincaré – Science and Hypothesis; Science and Method 120. Sigmund Freud – The Interpretation of Dreams; Introductory Lectures on Psychoanalysis; Civilization and Its Discontents; New Introductory Lectures on Psychoanalysis 121. George Bernard Shaw – Plays and Prefaces

There cannot be a language more universal and more simple, more free from errors and obscurities...more worthy to express the invariable relations of all natural things [than mathematics]. [It interprets] all phenomena by the same language, as if to attest the unity and simplicity of the plan of the universe, and to make still more evident that unchangeable order which presides over all natural causes

… Fourier's great mathematical poem ... {Referring to Joseph Fourier's mathematical theory of the conduction of heat, one of the precursors to thermodynamics.}

Primary causes are unknown to us; but are subject to simple and constant laws, which may be discovered by observation, the study of them being the object of natural philosophy. Heat, like gravity, penetrates every substance of the universe, its rays occupy all parts of space. The object of our work is to set forth the mathematical laws which this element obeys. The theory of heat will hereafter form one of the most important branches of general physics.

The deep study of nature is the most fruitful source of mathematical discoveries. By offering to research a definite end, this study has the advantage of excluding vague questions and useless calculations; besides it is a sure means of forming analysis itself and of discovering the elements which it most concerns us to know, and which natural science ought always to conserve.

Leibniz’s brilliant monadic system naturally gives rise to calculus (the main tool of mathematics and science). But it was not Leibniz who linked the energy of monads to waves – that was done later following the work of the French genius Jean Baptiste Joseph Fourier on Fourier series and Fourier transforms. Nevertheless, Leibniz’s idea of energy originating from countless mathematical points and flowing across a plenum is indeed the first glimpse in the modern age of “field theory” that now underpins contemporary physics. Leibniz was centuries ahead of his time. Leibniz’s system is entirely mathematical. It brings mathematics to life. The infinite collection of monads constitutes an evolving cosmic organism, unfolding according to mathematical laws.

Derrière la série de Fourier, d'autres séries analogues sont entrées dans la domaine de l'analyse; elles y sont entrees par la même porte; elles ont été imaginées en vue des applications. After the Fourier series, other series have entered the domain of analysis; they entered by the same door; they have been imagined in view of applications.

The integrals which we have obtained are not only general expressions which satisfy the differential equation, they represent in the most distinct manner the natural effect which is the object of the phenomenon... when this condition is fulfilled, the integral is, properly speaking, the equation of the phenomenon; it expresses clearly the character and progress of it, in the same manner as the finite equation of a line or curved surface makes known all the properties of those forms.

Early in the nineteenth century, Jean Baptiste Joseph Fourier was investigating what determines the temperature of terrestrial bodies such as the earth. He speculated that part of the answer was that atmospheric gases might inhibit heat from escaping, thereby warming the earth’s surface.

In a book published in 1808, François Fourier identified commerce as ‘the source of all evil’ and the Jews as ‘the incarnation of commerce’.84 Pierre-Joseph Proudhon went further, accusing the Jews of ‘having rendered the bourgeoisie, high and low, similar to them, all over Europe’. Jews were an ‘unsociable race, obstinate, infernal…the enemy of mankind. We should send this race back to Asia, or exterminate it.’85 Fourier’s follower, Alphonse Toussenel, edited the anti-Semitic journal Phalange and in 1845 produced the first full-scale attack on the Jews as a network of commercial conspirators against humanity, Les Juifs: rois de l’époque: histoire de la féodalité financière. This became a primary source-book for anti-Semitic literature, in many languages, for the next four decades.

Že skoro libovolný opakující se vzor lze sestavit skládáním jednoduchých vln, si jako první uvědomil Francouz jménem Joseph Fourier, jeden z Napoleonových expertů na blízce příbuzné obory egyptologie, matematiku a vysoušení močálů. Za pomoci nechutně komplikovaných výpočtů se mu podařilo z těchto prostých složek vytvořit prakticky každý opakovaný vzor, jaký si dovedete představit.