Rudolf Steiner , the science editor for the Kurschner edition of Goethe 's works , gave the following analogy : Goethe expresses this more succinctly : Goethe 's studies of color began with experiments which examined the effects of turbid media , such as air , dust , and moisture on the perception of light and dark .
( Schopenhauer , On Vision and Colors , Introduction ) Goethe 's studies of color began with subjective experiments which examined the effects of turbid media on the perception of light and dark .