Topology distinguishes continuous from discontinuous, but does not distinguish rectilinear from curvilinear. Nahuatl generally distinguishes three persons, both in the singular and plural numbers. Schmidhuber explicitly distinguishes between beautiful and interesting. Nietzsche argues that more than what they value as "good" distinguishes noble and base. In this connotation, "common law" distinguishes the authority that promulgated a law. Besides number, as in English, Amharic also distinguishes masculine and feminine gender in the singular. The cerebral cortex is the part of the brain that most strongly distinguishes mammals. Bandura clearly distinguishes between learning and performance. However, the Book of Enoch clearly distinguishes the two angels. Praxis is an activity unique to man, which distinguishes him from all other beings. Traditional knowledge typically distinguishes one community from another. He explicitly distinguishes the bird from a griffin. However, the city's unique landscape distinguishes it from the surrounding region. The face is the feature which best distinguishes a person. They believe that the Bible consistently distinguishes the two groups.