Editor's Introduction.- I. Task of the 'Science of Natural Justice'.- 1. The Philosophical Implications of Hobbes's State of Nature.- 2. Hobbes's Theory of Natural and Social Sciences.- 3. Obligations: Science and Philosophy in the Political Writings of Hobbes.- II. Logic and Language of this Science.- 4. Hobbes on the Natural and the Artificial.- 5. Hobbes's Entanglement with the Excluded Middle in his Theory of Man and Politics.- 6. Hobbes: Language and the Is-Ought.- 7. 'Insinuations to the Will': Hobbes's Style and Intention in Leviathan Compared to his Earlier Political Works.- III. Natural Right and the State of Nature.- 8. Hobbes's Conatus and the Roots of Character.- 9. Hobbes and the Wolf-man.- 10. Metamorphosis of the Idea of Right in Thomas Hobbes's Philosophy.- 11. The Peculiarity of Hobbes's Concept of Natural Right.- 12. Thomas Hobbes: The Mediation of Right.- IV. Generating the Commonwealth.- 13. Hobbes, Revolution and the Philosophy of History.- 14. Thomas Hobbes from Behemoth to Leviathan.- 15. Covenant: Hobbes's Philosophy of Religion and his Political System 'More Geometrico'.- V. Justice and Equity in the Commonwealth.- 16. Hobbes on Equity and Justice.- 17. Commentary on Professor May's 'Hobbes on Equity and Justice'.- 18. Justice and Equity: an Inquiry into the Meaning and Role of Equity in the Hobbesian Account of Justice and Politics.- VI. Hobbes Today.- 19. The Leviathan, Old and New.- 20. Hobbes and Macroethics: the Theory of Peace and Natural Justice.