Six years later Lessing's pamphlet on the Education of the Human Race appeared, couched in the form of aphoristic statements, and to a modern reader, one may venture to say, singularly wanting in argumentative force. The thesis is that the drama of history is to be explained as the education of man by a progressive series of religions, a series not yet complete, for the future will produce another revelation to lift him to a higher plane than that to which Christ has drawn him up. This interpretation of history proclaimed Progress, but assumed an ideal and applied a measure very different from those of the French philosophers. The goal is not social happiness, but a full comprehension of God. Philosophy of religion is made the key to the philosophy of history. The work does not amount to more than a suggestion for a new synthesis, but it was opportune and arresting. Herder meanwhile had been thinking, and in 1784 he gave the German world his survey of man's career--Ideas of the Philosophy of the History of Humanity. In this famous work, in which we can mark the influence of French thinkers, especially Montesquieu, as well as of Leibnitz, he attempted, though on very different lines, the same task which Turgot and Condorcet planned, a universal history of civilisation. The Deity designed the world but never interferes in its process, either in the physical cosmos or in human history. Human history itself, civilisation, is a purely natural phenomenon. Events are strictly enchained; continuity is unbroken; what happened at any given time could have happened only then, and nothing else could have happened. Herder's rigid determinism not only excludes Voltaire's chance but also suppresses the free play of man's intelligent will. Man cannot guide his own destinies; his actions and fortunes are determined by the nature of things, his physical organisation and physical environment. The fact that God exists in inactive ease hardly affects the fatalistic complexion of this philosophy; but it is perhaps a mitigation that the world was made for man; humanity is its final cause. The variety of the phases of civilisation that have appeared on earth is due to the fact that the possible manifestations of human nature are very numerous and that they must all be realised. The lower forms are those in which the best, which means the most human, faculties of our nature are undeveloped. The highest has not yet been realised. "The flower of humanity, captive still in its germ, will blossom out one day into the true form of man like unto God, in a state of which no terrestrial man can imagine the greatness and the majesty." [Footnote: Ideen, v. 5.]