Thomas Hobbes 1588-1679 was an English philosopher considered one of the founders of modern political philosophy His most famous work is Leviathan 1651 where he laid the foundations of contractualist theory which had a significant influence on the development of Western political philosophy Leviathan as it is commonly known is undoubtedly the most important and groundbreaking work of the 17th-century English philosopher politician and thinker Tho...