Thomas Hobbes is recognized by the political absolutism theory.
John Locke developed the mind philosophy or spirit philosophy.
David Hume believed that the human knowledge came from the senses.
Adam Smith was one of the greatest exponents of classic economics and economy philosophy.
Baron de Montesquieu developed the theory of power separation.
Denis Diderot developed the universal sensibility theory.
Voltaire coined the concept of religious tolerance against the conventional church.
Jean-Jacques Rousseau defended the concepts of general will and alienation.