"The difference between a Jewish and a non-Jewish person stems from the common expression: "Let us differentiate." Thus, we do not have a case of profound change in which a person is merely on a superior level. Rather, we have a case of "let us differentiate" between totally different species. This is what needs to be said about the body: the body of a Jewish person is of a totally different quality from the body of [members] of all nations of the world. … The difference of the inner quality, however, is so great that the bodies should be considered as completely different species. This is the reason why the Talmud states that there is a halachic difference in attitude about the bodies of non-Jews: "their bodies are in vain." … An even greater difference exists in regard to the soul. Two contrary types of soul exist, a non-Jewish soul comes from three satanic spheres, while the Jewish soul stems from holiness. … A Jew was not created as a means for some [other] purpose; he himself is the purpose, since the substance of all [divine] emanations was created only to serve the Jews. "In the beginning God created the heavens and the earth" [Genesis 1:1] means that [the heavens and the earth] were created for the sake of the Jews, who are called the "beginning.""