42. Therefore, in this Encyclical Letter We earnestly repeat those exhortations made by Us more than once before as the occasion arose: and We firmly trust that during the celebration of this Marian Year fervent prayers be offered throughout the world to the most powerful Mother of God who is also our tender mother; and that in those prayers special requests be made of her efficacious and ever-present patronage, that the sacred rights which are proper to the Church, and which the very exercise of human and civil liberty demands, may be openly and sincerely recognized by all, and this without doubt will conduce to greatest common good and an increase of common concord.