On Western Modern Culture

"Again and again we encounter the signs of an alternative civilization
to that built on Christ as "cornerstone" - a civilization which, even if
not explicitly atheist, is at least positivistic and agnostic, since it
is built upon the principle of thinking and acting as if God did not
exist. This approach can easily be recognized in the modern so-called
scientific, or rather scientistic, mentality, and it can be recognized
in literature, especially the mass media. To live as if God did not
exist means to live outside the parameters of good and evil, outside the
context of values derived from God. It is claimed that man himself can
decide what is good or bad. And this program is widely promoted in all
sorts of ways."

- Pope John Paul II, "Memory and Identity"