Johann Gottlieb Fichte published his influential work, Science of Knowledge, in 1794, where he developed the philosophy of subjective idealism. Fichte argued that the 'Ego' posits itself and the entire non-Ego world, placing human consciousness at the center of reality. His ideas challenged existing philosophical paradigms and laid the groundwork for later developments in German idealism, influencing thinkers such as Hegel and Schelling.

Fueled the extreme individualism and egotistical sublime of Romantic lyric poetry, where the poet's mind becomes the creator of the poetic universe. Poets like Wordsworth and Coleridge embraced this philosophy, emphasizing personal experience and introspection in their works.