People best know long didactic poems and historical plays, such as Don Carlos (1787) and William Tell (1804), of leading romanticist German poet, dramatist, and historian Johann Christoph Friedrich von Schiller.
This philosopher and dramatist struck up a productive if complicated friendship with already famous and influential Johann Wolfgang von Goethe during the last eighteen years of his life and encouraged Goethe to finish works that he left merely as sketches; they greatly discussed issues concerning aesthetics and thus gave way to a period, now referred to as classicism of Weimar. They also worked together on Die Xenien (The Xenies), a collection of short but harsh satires that verbally attacked perceived enemies of their aesthetic agenda.
To understand Schiller & Goethe and their friendship this is an easy intro into the world of Weimar and the 2 German Classics. Safranski is an avid reader and known via TV (ZDF) and while reading and digesting he writes his own books like a project, one by one. I read most of his books like about the German Romantics and his many biographies. Easy to understand and then the original texts you are interested in, one by one. Nietzsche and more ...