Albert Venn Dicey,a prominent British legal philosopher, established in his writings the basic principles for the rule of law under a legitimate constitution.
A prominent Enlightenment thinker, Denis Diderot’s writings on freedom of thought, religion, and speech bring him to the attention of libertarians today.
Frederick Douglass was an abolitionist who fought for black liberty both before and after the Civil War.
Charles Dunoyer was a major influence in the French classical liberal movement. He wrote on law, society, and the benefits of free markets and limited government.