4 He adduces it as a sort of reductio ad absurdum of Christians who would model life and cult on Christ and his apostles, unencumbered by later church traditions.
Anselm's motto, Credo ut intelligam, marks well the distance that has been traversed since Tertullian's Credo quia absurdum est.
Such a position is a reductio ad absurdum of the attempt to transcend the ultimate character of those intuitions and feelings which prompt men to benevolence.
Credo, quia absurdum was applied, notably by the popular writers of the French Second Empire, in a fashion grotesquely literal enough to scandalize Tertullian himself.
As a human person, I am body and soul; and the idealistic identification of the Ego with soul or mind, involving the corollary that my body belongs to the non-Ego and is no part of myself, is the reductio ad absurdum of idealism.