The Philosophy of History collects the lectures Hegel gave in Berlin and presents history not as a chronicle of events but as a single intelligible process. His starting conviction is that Reason governs the world, so the history of the world shows a rational course. To study history philosophically is to look past particular incidents for the design that they together unfold.
That design has one theme: freedom. Hegel argues that the essence of Spirit is freedom, and that the whole movement of history is the progress of the consciousness of freedom. Matter has its center outside itself and falls toward the ground, while Spirit has its center in itself; its long task is to know its own freedom and to build a world that matches it.
Hegel sorts the stages of this advance into broad world-eras. In his scheme the Oriental world knew only that one, the despot, is free; the Greek and Roman world recognized that some are free, resting their freedom on the unfreedom of slaves; and the modern German and Christian world reaches the principle that all are free. Each era is a necessary grade in Spirit's self-knowledge rather than a mere succession of empires.
The motor of this development is human passion. Hegel insists that nothing great in the world has been accomplished without passion, since people act from their own interests, needs, and ambitions. Yet those private aims serve a larger end the actors do not see. Reason permits the passions to work for it while remaining itself untouched, an arrangement Hegel names the cunning of reason. The individual pays the price; the idea advances.
Certain figures carry an era forward. World-historical individuals such as Caesar or Napoleon are those whose personal aims happen to coincide with the next step the world-spirit must take. They are not models of private virtue and often come to ruin, but through them a new principle enters the world. The result, for Hegel, is a demanding faith: history is the labor of Spirit toward the full consciousness of freedom, costly and slow, yet rational in the whole.