I see the greatest error of our times as rationalism. To quote JPII:
“All the rationalism of the last cetnrueis–as much in its Anglo-Saxon expression as in its Continential expression in Kantianism, Hegelianism, and the German philosophy of the nineteenth and twentieth centuries up to Husserl and Heidegger–can be considered a continuation and an expansion of Cartesian positions. The author of *Meditationes de Prima Philosophia *with his ontological proofs, *distanced us from the philosophy of existence, *and also from the traditional approaches of Saint Thomas which lead to God who is ‘autonomous existence’, Ipsum esse subsistens. By making subjective consciousness absolute, Descartes moves instead toward *pure consciousness of the Absolute, *which is pure thought. Such an Absolute is not autonomous existence, but rather *autonomous thought. *Only that which corresponds to human thought makes sense. The objective truth of this thought is not as important as the fact that something exists in human consciousness.” (*Crossing the Threshold of Hope, *[Alfred A. Knopf, New York, 1995], 51.)
So I think that rationalism led to liberalism and most other errors of our time, Humanist secularism being in the forefront.
Gracie