Chapter 21 examines Goethe’s relationship to German Idealism. Although the speculative nature of the Idealist method appears alien to Goethe’s own thought, and he himself expressed reservations about it, his poetic and scientific works display a significant degree of sympathy with the concerns that motivated his contemporaries. The chapter highlights the importance of Spinoza in the alignment between Goethe and Idealist thought, before considering in detail the significance of Kant, Fichte, Hegel and above all Schelling, whose philosophy of nature and art is particularly resonant with Goethe’s own.