Bertrand Arthur William Russell (1872-1970) was a British philosopher, logician, essayist and social critic best known for his work in mathematical logic and analytic philosophy.
John Locke (1632-1704) was an English philosopher and physician, widely regarded as one of the most influential of Enlightenment thinkers and commonly known as the "Father of Liberalism".
Generally regarded as one of the most important philosophers to write in English, David Hume (1711-1776) was also well known in his own time as a historian and essayist. A master stylist in any genre.
Immanuel Kant (1724-1804) is the central figure in modern philosophy. He synthesized early modern rationalism and empiricism, set the terms for much of 19th and 20th century philosophy.
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