Pius XII

No one should think himself a son of Mary, worthy of being received under her powerful protection, unless, like her, he is just, gentle and pure, and shows a sincere desire for true brotherhood, not harming or injuring but rather helping and comforting others.

(Encyclical Letter Ad caeli Reginam, 11 October 1954)

The warmth of your love should warm people and things that surround you. Make your presence distinguished in every place with the fervor of your love.

(Radio message to Italian Catholic Action, 8 December 1953)

[…] But, corresponding to this love of God and of Christ, there must be love of the neighbor. How can we claim to love the Divine Redeemer, if we hate those whom He has redeemed with His precious blood, so that He might make them members of His Mystical Body? […] And this commandment we have from God, that he who loveth God loveth his brother also." [153] Rather it should be said that the more we become "members one of another" [154] "mutually careful, one for another," [155] the closer we shall be united with God and with Christ; as, on the other hand, the more ardent the love that binds us to God and to our divine Head, the closer we shall be united to each other in the bonds of charity

(Encyclical Letter Mystici Corporis Christi, 29 June 1943)