Whoever teaches must become “all things to all men” (
9:22), to win everyone to Christ. . . . Above all, teachers must
not imagine that a single kind of soul has been entrusted to
them, and that consequently it is lawful to teach and form
equally all the faithful in true piety with one and the same
method! Let them realize that some are in Christ as newborn
babes, others as adolescents, and still others as adults in full
command of their powers. . . . Those who are called to the
ministry of preaching must suit their words to the maturity
and understanding of their hearers, as they hand on the
teaching of the mysteries of faith and the rules of moral
To conclude this Prologue, it is fitting to recall this pastoral
principle stated by the
The whole concern of doctrine and its teaching must be
directed to the love that never ends. Whether something is
proposed for belief, for hope or for action, the love of our
Lord must always be made accessible, so that anyone can see
that all the works of perfect Christian virtue spring from love
and have no other objective than to arrive at love.
Preface, 11; cf.
Preface, 10; cf.