This document discusses the differences between science and engineering, and examines several Supreme Court cases related to patent eligibility including Diamond v. Chakrabarty, Myriad, and Bilski. It argues that while processes of isolation and purification can be patentable, the products themselves like oxygen, adrenaline, and BRCA genes are physical phenomena and laws of nature that are not patent-eligible subject matter. The document concludes that courts should abandon the notion that isolated and purified products are different from their naturally occurring counterparts.