century, the Aufklärung (The Enlightenment) had transformed German high culture in music, philosophy, science, and literature. Christian Wolff was the pioneer as a writer who expounded the Enlightenment to German readers and legitimized German as a philosophic language. Johann Gottfried von Herder broke new ground in philosophy and poetry, as a leader of the Sturm und Drang movement of proto-Romanticism. Weimar Classicism (Weimarer Klassik) was a cultural and literary movement based in Weimar that sought to establish a new humanism by synthesizing Romantic, classical, and Enlightenment ideas. The movement (from 1772 until 1805) involved Herder as well as polymath Johann Wolfgang von Goethe and Friedrich Schiller, a poet and historian. Herder argued that every group of people had its own particular identity, which was expressed in its language and culture. This legitimized the promotion of German language and culture and helped shape the development of German nationalism. Schiller's plays expressed the restless spirit of his generation, depicting the hero's struggle against social pressures and the force of destiny. German music, sponsored by the upper classes, came of age under composers Johann Sebastian Bach, Joseph Haydn, and Wolfgang Amadeus Mozart. In remote Königsberg, Kant tried to reconcile rationalism and religious belief, individual freedom, and political authority. Kant's work contained basic tensions that would continue to shape German thought—and indeed all of European philosophy—well into the 20th century. German Enlightenment won the support of princes, aristocrats, and the middle classes, and it permanently reshaped the culture. However, there was a conservatism among the elites that warned against going too far. In the 1780s, Lutheran ministers Johann Heinrich Schulz and Karl Wilhelm Brumbey got in trouble with their preaching as they were attacked and ridiculed by Kant, Wilhelm Abraham Teller and others. In 1788, Prussia issued an "Edict on Religion" that forbade preaching any sermon that undermined popular belief in the Holy Trinity and the Bible. The goal was to avoid skepticism, deism, and theological disputes that might impinge on domestic tranquility. Men who doubted the value of Enlightenment favoured the measure, but so too did many supporters. German universities had created a closed elite that could debate controversial issues among themselves, but spreading them to the public was seen as too risky. This intellectual elite was favoured by the state, but that might be reversed if the process of the Enlightenment proved politically or socially destabilizing. Habsburg monarchy The reign of Maria