In this paper, I attempt to make clear the character of Locke's political thought by examining the development of his natural law teaching. In the Latin-Essays on the Law of Nature written in 1660-1664, Locke derives natural law from man's rational nature and this, in its turn, from God's wisdom and the eternal order that prevails in the universe. There is a harmony (convenientia) between natural law and man's rational nature. And in this state of 'convenientia' a necessary connection between virtue and happiness exists. But the concept of 'convenientia' is a ideal concept, and a necessary connection between the two is not visible in this life and can be guaranteed only if there is a life after death. Locke's moral theory became hedonistic,...