Aeterna Dei Sapientia §76

⁷⁶ These sons of the Church, therefore, We counsel once more in the words of St. Leo: "The faithful, wholly and singly, are God's temple; and just as His temple is perfect in the whole, so must it be perfect in the individual. For although all the members are not equally beautiful, nor can there be parity of merits in so great a variety of parts, nevertheless the bond of charity makes them all alike sharers in the beauty of the whole. For they are all united in the fellowship of holy love, and though they do not all make use of the same gifts of grace, they nevertheless rejoice with one another in the good things which are theirs. Nor can the object of their love be anything which bears no relation to themselves, for in the very fact of rejoicing in another's progress they are enriched by their own growth." (69)