Mater et Magistra §245

²⁴⁵ In Our paternal care as universal Pastor of souls, We earnestly beg Our sons, immersed though they be in the business of this world, not to allow their consciences to sleep; not to lose sight of the true hierarchy of values. 246. Certainly, the Church teaches—and has always taught—that scientific and technical progress and the resultant material well-being are good things and mark an important phase in human civilization. But the Church teaches, too, that goods of this kind must be valued according to their true nature: as instruments used by man for the better attainment of his end. They help to make him a better man, both in the natural and the supernatural order.