Famous People of the Enlightenment

The Enlightenment or ‘Age of Reason’ was a period in the late seventeenth century and early eighteenth century, where a group of philosophers, scientists and thinkers advocated new ideas based on reason. This period saw a decline in the power of absolute monarchies, a reduction in the pre-eminence of the Church and a rise of modern political ideologies, such as liberalism, republicanism and greater independence of thought. The Enlightenment ideas were influential forces behind the American and French revolutions.

Francis_Bacon Francis Bacon (1561 –  1626) English philosopher, statesman, orator and scientist. Bacon is considered the ‘father of empiricism’ for his work and advocacy of scientific method and methodical scientific inquiry in investigating scientific phenomena. He encouraged an empirical approach both through his own example and philosophically. A key figure in the Scientific Revolution of the 17th Century.

Johannes_Kepler Johannes Kepler  (1571 – 1630) German mathematician, astronomer, and astrologer. Kepler is best known for his laws of planetary motion. He formed a key figure in the 17th Century Scientific Revolution.

writerRene Descartes (1596 – 1650) Rene Descartes was a French philosopher and mathematician. Descartes made a significant contribution to the philosophy of rationalism. Descartes’ Meditations was ground-breaking because he was willing to doubt previous certainties and tried to prove their validity through logic. Later empiricists disagreed with Descartes methods, but his philosophy opened up many topics to greater discussion. Although Descartes ‘proved’ the existence of God, his doubt was an important step in promoting reason over faith. Descartes also made significant discoveries in analytical geometry, calculus and mathematics.

writerBaruch Spinoza (1632-1677) Spinoza was a Jewish-Dutch philosopher. He was an influential rationalist, who saw the underlying unity of the universe. He was critical of religious scriptures and promoted a view that the Divine was in all, and the Universe was ordered, despite its apparent contradictions. His philosophy influenced later philosophers, writers and romantic poets, such as Shelley and Coleridge.

writerImmanuel Kant (1724 – 1804) Immanuel Kant was an influential German philosopher whose ‘Critique of Pure Reason’ sought to unite reason with experience and move philosophy on from the debate between rationalists and empiricists. Kant’s philosophy was influential on future German idealists and philosophers, such as Shelling and Schopenhauer.

writerJohn Locke (1632 – 1704) Locke was a leading philosopher and political theorist, who had a profound impact on liberal political thought. He is credited with ideas, such as the social contract – the idea that government needs to be with the consent of the governed. Locke also argued for liberty, religious tolerance and rights to life and property. Locke was an influential figure on those involved in the American and French revolutions, such as Jefferson, Madison and Voltaire.

Sir Isaac Newton (1642-1726) Newton made studies in mathematics, optics, physics, and astronomy. In his Principia Mathematica, published in 1687, he laid the foundations for classical mechanics, explaining the Law of Gravity and the Laws of Motion.

writer Voltaire (1694 – 1778) – French philosopher and critic. Best known for his work Candide (1762) which epitomises his satire and criticisms of social convention. Voltaire was instrumental in promoting Republican ideas due to his criticism of the absolute monarchy of France.

writerJean-Jacques Rousseau (1712-1778) Rousseau was a political philosopher widely known for his ‘Social Contract‘ (1762), which sought to promote a more egalitarian form of government by consent and formed the basis of modern republicanism. His ideas were influential in the French and American revolutions.

Benjamin Franklin (1706-1790) One of the American Founding Fathers of the United States. He was an author, politician, diplomat, scientist and statesman. He was a key figure in the American Enlightenment, which saw major breakthroughs in science and ideas of political republicanism. Franklin was an early supporter of colonial unity and the United States.


writerAdam Smith (1723-1790) was a Scottish social philosopher and pioneer of classical economics. He is best known for his work ‘The Wealth of Nations‘ which laid down a framework for the basis of classical free-market economics. Smith is often referred to as the ‘Father of Economics.’ Smith’s work makes a strong case for free market economics, but he was also aware of situations where the free market could be against the public interest, for example monopolies.

Thomas Jefferson (1743-1826) was an American Founding Father and the principal author of The Declaration of Independence (1776) In this declaration, Jefferson laid out the fundamental principles of America, calling for equality and liberty. He also advocated ending slavery and promoting religious tolerance.

Citation: Pettinger, Tejvan. “Famous people of The Enlightenment”, Oxford, www.biographyonline.net, 4th June 2013. Last updated 21st February 2018.

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