29. Fortunate the Church, indeed, if thus it will lay its "foundations with sapphires" (Cf. Isaias liv: 11). The needs of our times then require that the laity, too, and especially those who collaborate with the Hierarchy of the Church, procure for themselves a treasure of religious knowledge, not a poor and meager knowledge, but one that will have solidity and richness through the medium of libraries, discussions and study clubs; in this way they will derive great benefit for themselves and at the same time be able to instruct the ignorant, confute stubborn adversaries and be of assistance to good friends.