Speaking (below) of Trojan Horses ...

Dietrich von Hildebrand wrote a book entitled: "Trojan Horse in the City of God."

Dietrich von Hildebrand:

... we bury the Christian faith and Christian life when we attempt to overcome the sterility of a legalistic religion by turning from the spirit of Christ to the saeculum, by substituting for the holy fire of Christ the secular enthusiasm, by forgetting the supernatural vitality of the saints and embracing the nervous, hectic, profane preoccupations of the modern world. ...

The progressives tend to believe that narrowness is the only kind of mediocrity. They forget that being blind to those things which are antagonistic to true greatness and true culture and lavishing enthusiasm on shallow worldliness are expressions of a more blatant mediocrity and are even more incompatible with religion.

Trojan Horse in the City of God, p. 58, 59.