English Philosopher and Physician, Widely Regarded as one of the Most Influential of Enlightenment Thinkers and Commonly Known as the "Father of Liberalism"

: An English philosopher and physician, widely regarded as one of the most influential of Enlightenment thinkers and commonly known as the "father of liberalism". Considered one of the first of the British empiricists, following the tradition of Sir Francis Bacon, Locke is equally important to social contract theory. His work greatly affected the development of epistemology and political philosophy. (From: Wikipedia.org.)

Locke, John, "Second Treatise on Government," 1690.