The great civil liberties we enjoy today, like Freedom of Speech and Freedom of the Press, have their foundation in Freedom of Thought. Without being able to freely explore all kinds of matter with an inquisitive mind, whether it be religious, political, societal, scientific, etc., any expression thereof is limited in and of itself. John Bagnell Bury tells the history of freedom of thought from its roots in Ancient Greece and Rome through the dark and restrictive Middle Ages and its renewe...