42 Let the teachers in ecclesiastical institutions be aware that they cannot with tranquil conscience exercise the office of teaching entrusted to them, unless in the instruction of their students they religiously accept and exactly observe the norms which We have ordained. That due reverend and submission which in their unceasing labor they must profess toward the Teaching Authority of the Church, let them instill also into the minds and hearts of their students.
Source: Humani Generis (Vatican.va)