Rudolf Steiner's Objective Idealism
"I listened in a spiritual sense with the greatest possible sympathy to everything that came from Schröer. Yet I could not do otherwise even in his presence than build up independently in my own mind that toward which I was striving in my innermost spirit. Schröer was an idealist, and the world of ideas as such was for him that which worked as a propulsive force in the creation of nature and of man. I then found it indeed difficult to express in words for myself the difference between Schröer's way of thinking and mine. He spoke of ideas as the propelling forces in history. He felt life in the idea itself. For me the life of the spirit was behind the ideas, and these were only the phenomena of that life in the human soul. I could then find no other terms for my way of thinking than “objective idealism.” I wished thereby to denote that for me the reality is not in the idea; that the idea appears in man as the subject, but that just as colour appears on a physical object, so the idea appears on the spiritual object, and that the human mind – the subject – perceives it there as the eye perceives colour on a living being."
Rudolf Steiner, The Story of My Life, Chapter V.