1) A deep love and devotion to the Blessed Eucharist in the Holy Sacrifice of the Mass.
2) Faithful following of Christ the High Priest, source of all grace, our example and our inspiration.
3) Filial love and true devotion to Mary the Mother of Priests and patroness of our seminary, Our Lady of Guadalupe.
4) Loyalty and fidelity to, and dependence on, the Magisterium of the Church and the successor of Saint Peter, our Patron.
Two current publications that follow the dealings of SSPX and FSSP are the Remnant and the Wanderer, respectively. In one article from the Wanderer, which happens to be the one of the two publications loyal to Rome, Fr. John Emerson gives more background as to the establishment of FSSP:
It came into being on July 18th, 1988, at a meeting at the Cistercian Abbey of Hauterive near Fribourg, Switzerland. We met there — I wasn’t yet a member, so I wasn’t there — the Society met there, about 10 priests and a number of seminarians, all of them, except one or two, persons who had just left the Society of St. Pius X because of the schismatic consecration of four bishops by Archbishop Lefebvre.
Keep in mind that FSSP says rightly: The Fraternity was founded in response to the Holy Father’s (JPII’s) call to ecclesial unity and the new evangelization.
Despite the accusations of modernism and break with Tradition from the SSPX against Rome, it is clear across the board that SSPX must repent and return to the House of God and not vice versa.