The burning zeal for God’s glory that motivates you fills my heart with joy. It is sad for us to see in our own time that indifferentism in its many forms is spreading like an epidemic not only among the laity but also among religious. But God is worthy of glory beyond measure, and therefore it is of absolute and supreme importance to seek that glory with all the power of our feeble resources. Since we are mere creatures we can never return to him all that is his due. The most resplendent manifestation of God’s glory is the salvation of souls, whom Christ redeemed by shedding his blood. To work for the salvation and sanctification of as many souls as possible, therefore, is the preeminent purpose of the apostolic life.
From the Letters of Saint Maximilian Mary Kolbe, priest and martyr