 Social Darwinism and the concept of " human nature " are ideas that are prevalent throughout The Satanic Bible . LaVey describes Satanism as " a religion based on the universal traits of man , " and humans are described throughout as inherently carnal and animalistic . Each of the seven deadly sins is described as part of human 's natural instinct , and are thus advocated . Social Darwinism is particularly noticeable in The Book of Satan , where LaVey uses portions of Redbeard 's Might Is Right , though it also appears throughout in references to man 's inherent strength and instinct for self @-@ preservation . LaVeyan Satanism has been described as " institutionalism of Machiavellian self @-@ interest " because of many of these themes . 
