The cornerstone of Fromm's humanistic philosophy is his interpretation of the biblical story of Adam and Eve's exile from the Garden of Eden. Drawing on his knowledge of the Talmud, Fromm pointed out that being able to distinguish between good and evil is generally considered to be a virtue, but that biblical scholars generally consider Adam and Eve to have sinned by disobeying God and eating from the Tree of Knowledge. However, departing from traditional religious orthodoxy on this, Fromm extolled the virtues of humans taking independent action and using reason to establish moral values rather than adhering to authoritarian moral values. Beyond a simple condemnation of authoritarian value systems, Fromm used the story of Adam and Eve as an allegorical explanation for human biological evolution and existential angst, asserting that when Adam and Eve ate from the Tree of Knowledge, they became aware of themselves as being separate from nature while still being part of it. This is why they felt "naked" and "ashamed": they had evolved into human beings, conscious of themselves, their own mortality, and their powerlessness before the forces of nature and society, and no longer united with the universe as they were in their instinctive, pre-human existence as animals. According to Fromm, the awareness of a disunited human existence is a source of guilt and shame, and the solution to this existential dichotomy is found in the development of one's uniquely human powers of love and reason. However, Fromm distinguished his concept of love from unreflective popular notions as well as Freudian paradoxical love (see the criticism by Marcuse below). Fromm considered love an interpersonal creative capacity rather than an emotion, and he distinguished this creative capacity from what he considered to be various forms of narcissistic neuroses and sado-masochistic tendencies that are commonly held out as proof of "true love". Indeed, Fromm viewed the experience of "falling in love" as evidence of one's failure to understand the true nature of love, which he believed always had the common elements of care, responsibility, respect, and knowledge. Drawing from his knowledge of the Torah, Fromm pointed to the story of Jonah, who did not wish to save the residents of Nineveh from the consequences of their sin, as demonstrative of his belief that the qualities of care and responsibility are generally absent from most human relationships. Fromm also asserted that few people in modern society had