Columbia subject headings:
Color.
Goethe, Johann Wolfgang von, 1749-1832--Knowledge and learning.
Goethe, Johann Wolfgang von, 1749-1832. Zur Farbenlehre.
Optics--History--19th century.
Science.
Harvard subject headings:
Color (Philosophy)
Color.
Goethe, Johann Wolfgang von, 1749-1832--Knowledge--Science.
Goethe, Johann Wolfgang von, 1749-1832. Beyträge zur optik.
Goethe, Johann Wolfgang von, 1749-1832. Zur Farbenlehre.
Hegel, Georg Wilhelm Friedrich, 1770-1831. System der Philosophie.
Light
Optics--History--19th century.
Philosophy of nature
Schelling, Friedrich Wilhelm Joseph von, 1775-1854. Ideen zu einer philosophie der Natur.
Schopenhauer, Arthur, 1788-1860--Contributions in philosophy of nature.
Visual perception
Princeton subject headings:
Color (Philosophy)--History--19th century.
Goethe, Johann Wolfgang von, 1749-1832. Beyträge zur optik.
Goethe, Johann Wolfgang von, 1749-1832. Zur Farbenlehre.
Hegel, Georg Wilhelm Friedrich, 1770-1831. System der Philosophie.
Light--Philosophy--History--19th century.
Philosophy of nature--History--19th century.
Schelling, Friedrich Wilhelm Joseph von, 1775-1854. Ideen zu einer Philosophie der Natur.
Schopenhauer, Arthur, 1788-1860--Contributions in philosophy of nature.