God gave each of us a soul, which is a candle that He gives us to illuminate our surroundings with His light. We must not only illuminate the inside … - Menachem Mendel Schneerson

If you see what needs to be repaired and how to repair it, then you have found a piece of the world that G-d has left for you to perfect.

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."

Activism on behalf of the ways of Chassidus means that even when a Chassid is in the marketplace, deeply involved in his business, he still thinks about what he can do for Chassidic concerns and the welfare of Chassidim. Activism on behalf of the ways of Chassidus is a personal obligation, regardless whether one is great or limited in knowledge of Chassidus.