Sacerdotalis Caelibatus §11

¹¹ Again, in view of the way in which a candidate for the priesthood comes to accept an obligation as momentous as this, the objection is raised that in practice this acceptance results not from an authentically personal decision, but rather from an attitude of passivity, the fruit of a formation that neither is adequate nor makes sufficient allowance for human liberty. For the degree of knowledge and power of decision of a young person and his psychological and physical maturity fall far below—or at any rate are disproportionate to—the seriousness of the obligation he is assuming, its real difficulties and its permanence.