German philosophy
Neo-Kantianism refers broadly to the revival of the type of philosophy explained by Immanuel Kant and of the interpretations of Kant provided by post-Kantian philosophers such as Schopenhauer, Jakob Friedrich Fries and Johann Friedrich Herbart. Major figures in the neo-Kantian movement, which began around the 1860s, include Friedrich Albert Lange and Hermann Cohen.
Feminist Jewish ethics
Hermann Cohen was a philosopher who lived from 1842-1918 who held many of the same philosophical beliefs as Immanuel Kant, but applied to Judaism. Cohen also sees ethics as what "ought to be" in the social world, as opposed to seeing what "is" as a current state of affairs that is unchangeable. According to Cohen, only God falls into both categories of what "is" and what "ought to be". According to Cohen, ethics are equivalent to what ought to be. Jewish feminist ethicists have use Cohen's Kantian ideas by expressing their ideals for equality for women in Judaism as what ought to be.