Thomas Hobbes (1588 - 1679)

Thomas Hobbes of Malmesbury ( 5 April 1588 – 4 December 1679), in some older texts Thomas Hobbs of Malmsbury, was an English philosopher, best known today for his work on political philosophy. His 1651 book Leviathan established social contract theory, the foundation of most later Western political philosophy.
Thomas Hobbes was born at Westport, now part of Malmesbury in Wiltshire, England, on 5 April 1588. Born prematurely when his mother heard of the coming invasion of the Spanish Armada, Hobbes later reported that "my mother gave birth to twins: myself and fear."

 His childhood is almost a complete blank, and his mother's name is unknown. His father, also named Thomas, was the vicar of Charlton and Westport. Thomas Hobbes Sr. had an older brother, Francis Hobbes, who was a wealthy merchant with no family of his own. Thomas Hobbes, the younger, had one brother Edmund who was about two years older than he was. Thomas Sr. abandoned his wife, two sons and a daughter, leaving them in the care of his brother, Francis, when he was forced to flee to London after being involved in a fight with a clergyman outside his own church. Hobbes was educated at Westport church from the age of four, passed to the Malmesbury school and then to a private school kept by a young man named Robert Latimer, a graduate of the University of Oxford. Hobbes was a good pupil, and around 1603 he went up to Magdalen Hall, the predecessor college to Hertford College, Oxford.The principal John Wilkinson was a Puritan, and he had some influence on Hobbes.

At university, Hobbes appears to have followed his own curriculum; he was "little attracted by the scholastic learning". He did not complete his B.A. degree until 1608, but he was recommended by Sir James Hussey, his master at Magdalen, as tutor to William, the son of William Cavendish, Baron of Hardwick (and later Earl of Devonshire), and began a lifelong connection with that family.

Hobbes became a companion to the younger William and they both took part in a grand tour of Europe in 1610. Hobbes was exposed to European scientific and critical methods during the tour in contrast to the scholastic philosophy which he had learned in Oxford. His scholarly efforts at the time were aimed at a careful study of classic Greek and Latin authors, the outcome of which was, in 1628, his great translation of Thucydides' History of the Peloponnesian War, the first translation of that work into English from a Greek manuscript. It has been argued that three of the discourses in the 1620 publication known as Horea Subsecivae: Observations and Discourses, also represent the work of Hobbes from this period.

Although he associated with literary figures like Ben Jonson and briefly worked as Francis Bacon's amanuensis, he did not extend his efforts into philosophy until after 1629. His employer Cavendish, then the Earl of Devonshire, died of the plague in June 1628. The widowed countess dismissed Hobbes but he soon found work, again as a tutor, this time to Gervase Clifton, the son of Sir Gervase Clifton, 1st Baronet. This task, chiefly spent in Paris, ended in 1631 when he again found work with the Cavendish family, tutoring William, the eldest son of his previous pupil. Over the next seven years as well as tutoring he expanded his own knowledge of philosophy, awakening in him curiosity over key philosophic debates. He visited Florence in 1636 and was later a regular debater in philosophic groups in Paris, held together by Marin Mersenne. From 1637 he considered himself a philosopher and scholar.

Hobbes's first area of study was an interest in the physical doctrine of motion and physical momentum. Despite his interest in this phenomenon, he disdained experimental work as in physics. 

In 1650 a pirated edition of The Elements of Law, Natural and Politic was published. It was divided into two separate small volumes (Human Nature, or the Fundamental Elements of Policieand De corpore politico, or the Elements of Law, Moral and Politick). 

Social Contract Theory

Social contract theory, nearly as old as philosophy itself, is the view that persons' moral and/or political obligations are dependent upon a contract or agreement among them to form the society in which they live. Socrates uses something quite like a social contract argument to explain to Crito why he must remain in prison and accept the death penalty. However, social contract theory is rightly associated with modern moral and political theory and is given its first full exposition and defense by Thomas Hobbes. After Hobbes, John Locke and Jean-Jacques Rousseau are the best known proponents of this enormously influential theory, which has been one of the most dominant theories within moral and political theory throughout the history of the modern West.