Not only did God create man in his image and likeness, but also he modeled human society after the society of the Persons in the most holy Trinity. For this reason, just as in that adorable society, the Father loves his Son as himself, and loves himself in his Son, and the same is true for the love of the Son toward the Father and toward the Holy Spirit, and for the love of the Holy Spirit toward the Father and the Son, he also wants man to love his neighbor as himself.
This is why he gave this second commandment: You will love your neighbor as yourself, which Jesus Christ said was like the first (Mt 22:39), because it also conforms to the divine and eternal life of the Persons in the most holy Trinity.
Jean-Jacques Olier, Introduction to the Christian Life and Virtues, Chapter 14, in Bérulle and the French School, Thompson, ed., Glendon, tr. Paulist (New York: 1989) p. 267.
Olier was a fairly significant figure in the seventeenth century, and the main figure of the Sulpician branch of what is often called today the French School of Spirituality. I probably should do a post on it at some point; very interesting and diverse group.
