Mathematicism is a form of rationalist idealist or mentalist/spiritualist monism. He characterises Ivanov as a cynic and claims to be an idealist. A. C. Ewing is an analytic philosopher influenced by the objective idealist tradition. However, like many fuzzy concepts, the distinction between idealist and relativist viewpoints is frequently vague. Advaita Vedanta is most often regarded as an idealist monism. She is also something of an idealist, believing in certain ideals as justice. Feminism was also problematic due to its essentialist and idealist concept of woman. The philosophy has its roots in German idealist and mystical philosophies. Arthur Schopenhauer considered himself to be a transcendental idealist. Early realism can be characterized as a reaction against interwar idealist thinking. Giovanni Gentile was one of the most significant 20th-century Idealist/Fascist philosophers. Stewart is remembered for portraying idealist "everyman" characters in his films. The orthodox interpretation posits Carter as a dreamy star-eyed idealist. Some scholars merge preterism with an idealist perspective. Whitehead is not an idealist in the strict sense.