《利维坦》全书分为四部分。第一部分开宗明义宣布了作者的彻底唯物主义自然观和一般的哲学观点，声称宇宙是由物质的微粒构成，物体是独立的客观存在，物质永恒存在，既非人所创造，也非人所能消灭，一切物质都于运动状态中。第二部分是全书的主腐朽 ，主要描述自然状态中人们不幸的生活中都享有“生而平等”的自然权利，又都有渴望和平和安定生活的共同要求，于是出于人的理性，人们相互间同意订立契约，放弃各人的自然权利，把它托付给某一个人或一个由多人组成的集体，这个人或集体能把大家的意志化为一个意志，能把大家的人格统一为一个人格；大家则服从他的意地志，服从他的判断。第三部分《论基督教国家》旨在否认自成一统的教会，抨击教皇掌有超越世俗政权的大权。第四部分《论黑暗的王国》，其主要矛头是针对罗马教会，大量揭发了罗马教会的腐败黑暗、剥削领婪的种种丑行劣迹，从而神的圣洁尊崇，教会的威严神秘，已经在霍布斯的笔下黯然失色。

Thomas Hobbes' Leviathan is arguably the greatest piece of political philosophy written in the English language. Written in a time of great political turmoil (Hobbes' life spanned the reign of Charles I, the Civil Wars, the Commonwealth and the Protectorate, and the Restoration), Leviathan is an argument for obedience to authority grounded in an analysis of human nature. Since its first publication in 1991 Richard Tuck's edition of Leviathan has been recognised as the single most accurate and authoritative text, and for this revised edition Professor Tuck has provided a much amplified and expanded introduction, which will provide students unfamiliar with Hobbes with a cogent and accessible introduction to this most challenging of texts. Other vital aids to study include an extensive guide to further reading, a note on textual matters, a chronology of important events and brief biographies of important persons mentioned in Hobbes' text.

The Peloponnesian War (431-404 B.C.E.) was the greatest "disturbance" in Greek history to that time. The bitter rivalry between the two chief city-states, Athens and Sparta, and their respective allies ended with the ruin of Athens' naval hegemony and what the Greek historian Thucydides (ca. 460-400 B.C.E.) called a "convulsion" affecting all humankind. With the detachment of a clinician and the dramatic skill of a poet, Thucydides recreates the often savage events of the war and brings to life its chief protagonists: Pericles, Nicias, Cleon, Alcibiades, and others. The first of the "scientific" historians, Thucydides makes use of documentary material and relies on eyewitness accounts; even where direct documentary evidence is lacking, his keen understanding of human nature helps him to uncover the truth of what actually happened. The loftiness of its ideals, its painstaking research, and its beauty of expression have made the History of the Peloponnesian War a work that is in the author's own words, "a possession for all time."