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Gottfried Leibniz, German mathematician

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Gottfried Wilhelm Leibniz

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Col portrait of the German mathematician Leibniz

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Gottfried Wilhelm Leibniz

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Gottfried Wilhelm Leibnitz

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1649 Rene Descartes portrait philosopher

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Gottfried Wilhelm Leibniz, German mathematician

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Gottfried Leibniz, German mathematician

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A statue of Gottfried Wilhelm Leibniz.

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Gottfried Leibniz, caricature

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Destruction of Papin's steamboat

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Differential calculus equation

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Leibniz's work on calculus

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BLAISE PASCAL (1623-1662).

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WILLIAM PALEY (1743-1805).

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JEAN-JACQUES BEL, 1740.

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JOHANN GOTTLIEB FICHTE

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FRIEDRICH ENGELS (1820-1895).

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FRIEDRICH W. NIETZSCHE

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FRIEDRICH ENGELS (1820-1895).

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HELVETIUS FAMILY.

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JEAN JACQUES ROUSSEAU

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ARCHIMEDES (c287-212 B.C.).

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Hypatia, female mathematician

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GEORGE HERBERT MEAD

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Hypatia, mathematician and philosopher

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GOTTFRIED VON LEIBNIZ

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GOTTFRIED VON LEIBNIZ

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BERTRAND RUSSELL

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Anatomical dissection, 16th century

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Napoleon Bonaparte, French Emperor

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Aristotle (384-322 BC), Greek Philosopher, Woodcut from "Les Vrais Pourtraits et vies des Hommes Illustres", Andre Thevet, 1584

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Pythagoras (582-507 BC), Greek Philosopher, Woodcut from "Les Vrais Pourtraits et vies des Hommes Illustres", Andre Thevet, 1584

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Voltaire, French author

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JEAN JACQUES ROUSSEAU

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Charles Nodier

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Denis Diderot

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Jean-Jacques Rousseau

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Dugald Stewart

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Jean Jacques Rousseau

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Jeremy Bentham

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John Locke

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Sir James Mackintosh

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John Locke (1632-1704)

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Blaise Pascal

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Jean Le Rond D'Alembert

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Rene Descartes

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Galileo Galilei

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Marie Jean Antoine Nicolas De Caritat

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A Philosopher

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Jacob Brill, Dutch philosopher

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SOREN KIERKEGAARD

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Dugald Stewart, Scottish mathematician

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Robert Devereux

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FRANCIS BACON (1561-1626).

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RALPH WALDO EMERSON

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MARTIN HEIDEGGER (1889-1976).

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Emanuel Swedenborg, Swedish philosopher

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GERMAN PRINCE, 1568.

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Jacob Brill

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GEBER (fl. 721-776).

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LEONHARD FUCHS (1501-1566).

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LEONHARD FUCHS (1501-1566).

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MARCO POLO (1254-1324).

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MARCO POLO (1254?-1324).

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1544 Aristotle Greek Philosopher Portrait

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Voltaire, French author

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Saint Albertus Magnus, German philosopher

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Edward Herbert 1st Baron Herbert(of Cherbury)

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Rene Descartes

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GOTTFRIED VON LEIBNIZ

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GOTTFRIED VON LEIBNIZ

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Johann Adam Weishaupt (1748-1830), German, philosopher, Founder of the Order of the Illuminati Secret Society, after Mansinger painting, Engraved by C,W, Bockfe, Book Illustration from “Cagliostro, The Splendour and Misery of A Master of Magic”, Chapman a

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GOTTFRIED VON LEIBNIZ

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GOTTFRIED VON LEIBNIZ

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GOTTFRIED von LEIBNIZ

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Pythagoras, Ancient Greek philosopher

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Gottfried Leibniz, German mathematician

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JOHANN GOTTFRIED von HERDER

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JOSE VASCONCELOS (1882-1959).

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CONFUCIUS (c551-479 B.C.).

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WILLIAM JAMES (1842-1910).

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BENJAMIN FRANKLIN

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BENJAMIN FRANKLIN (1706-1790).

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BENJAMIN FRANKLIN

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BENJAMIN FRANKLIN (1706-1790).

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COUNT KEYSERLING

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JEAN JACQUES ROUSSEAU

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Ancient Greek warrior

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Sailor in time of Henry VIII

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English sea captain

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English ship master

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Mariner's Mirrour

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Leo X supervising burning of Martin Luther's books

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AUGUSTE COMTE (1798-1857).

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RENE DESCARTES (1596-1650).

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RENE DESCARTES (1596-1650).

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RENE DESCARTES (1596-1650).

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Pyhthagorean world view, 16th century

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David Hume

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Friedrich Heinrich Jacobi, German philosopher

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JOHN LOCKE (1632-1704).

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JEREMY BENTHAM (1748-1832).

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JOHN LOCKE (1632-1704).

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JOHN LOCKE (1632-1704).

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HERBERT SPENCER (1820-1903).

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FRANCIS BACON (1561-1626).

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A Yogi meditating

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Medical consultation, 15th century

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Blood letting

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JAYACHAMARAJA WADIYAR

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Arthur Schopenhauer, German philosopher

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Pythagoras, Ancient Greek mathematician

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Ralph Waldo Emerson

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Henry David Thoreau

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Thomas Hobbes

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Sir William Petty

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John Locke

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Publius Aelius Traianus Hadrianus

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Henry St John Viscount Bolingbroke

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Zeno of Citium

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Samuel Taylor Coleridge

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Harriet Martineau

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Voltaire, penname of Francois-Marie Arouet

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Samuel Taylor Coleridge

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Johann Christoph Friedrich Von Schiller

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Bernard le Bovier de Fontenelle

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Voltaire, penname of Francois-Marie Arouet

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William Hyde Wollaston

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Dante Alighieri

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David Hume

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Friedrich Von Schiller

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John Wycliffe

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Robert Boyle

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Thomas Hobbes

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Voltaire penname of Francois-Marie Arouet

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William Hyde Wollaston

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Dante Alighieri

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John Wycliffe

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Jean Jacques Rousseau

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John Locke

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Adam Smith Author of The Wealth of Nations

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Henry St John Viscount Bolingbroke

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James Martineau

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Ralph Waldo Emerson 1803 To 1882

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Aelius Galenus Or Claudius Galenus

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William Derham

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Niccolo Di Bernardo Dei Machiavelli

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Henry Aldrich

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Adam Smith

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Henry Home

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Diogenes Of Sinope

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Albertus Magnus (c1200-1280)

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Albertus Magnus (c1200-1280)

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Albertus Magnus (c1200-1280)

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TOMB OF SOCRATES, 1674.

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Pietro Pomponazzi, Italian philosopher

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Alessandro Piccolomini, Italian humanist

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Raphael And His Beloved

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Male mandrake root, 15th century

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ARTHUR SCHOPENHAUER

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NICCOLO MACHIAVELLI

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VOLTAIRE: CANDIDE.

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NICCOLO MACHIAVELLI

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EPICTETUS (c55-c135 A.D.).

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PETR ALEKSEEVICH KROPOTKIN

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EPICTETUS (born 50 A.D.).

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Henry St John

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Thomas Hobbes

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Nicolas Malebranche

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James Burnett

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HYPATIA (c.3.70-415) mathematician and philosopher (NE0PLAT0NIST), murdered by the followers of Cyril, Patriarch of Alexandria.Mid-19th centuy atist's reconstruction.

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