By Father James V. Schall, S.J., CERC - What is unique about Catholicism, and on this uniqueness it stands or falls, is its claim to be true. Many philosophies and religions likewise claim to be true. Indeed, even the claim to be true implies that the function of the human mind is itself to be critically examined especially when it comes to religion…. Catholicism's claim to be true is not proclaimed in a kind of vacuum. It is a concrete faith. Catholicism's intellectual side has manifested a serious attempt, according to time and place, no less so today than ten or fifteen centuries ago, to meet the arguments that reject, on whatever basis, its truth.