Meminisse iuvat (14 July 1958) is an encyclical of Pope Pius XII, asking for prayers for the persecuted Church in the East and criticizing harmful cultural developments in the West.

The problems and crisis of humanity continue to exist, because God, the source and guarantor of justice, the fountain of truth, the basis of all laws, is denied his proper place or, worse, completely disregarded.

If a house is not built on a solid and sure foundation, it tumbles down; if a mind is not enlightened by the divine light, it strays more or less from the whole truth; if citizens, peoples, and nations are not animated by brotherly love, strife is born, waxes strong, and reaches full growth.

Unsuspecting and uneducated young people easily fall for the temptations of seductive allurements of vice, as writers and publishers and movies continue to stir up vicious and violent appetites solely for the sake of gain.

Governments choose and appoint bishops, as if the Catholic Church were a creature of a single nation, dependent on its civil authority, and not a divine institution extending to all peoples.

Nothing can even shake her, Pope Pius teaches, because, as many physical elements of this world crash with thunder around her, she continues to provide a safe port.