There is a maxim upon which as a foundation stone the little society of Calvario rests.... It is the following: "we must so earnestly take heed to ourselves, as to value nothing except in reference to the salvation and perfection of our own souls," and regard all that concerns our neighbour merely as a means of pleasing God or sanctifying ourselves.
This maxim excludes that false zeal which renders people more anxious about their neighbour's salvation than their own, the offspring of secret pride, through which a man shrinks from considering his own shortcomings and presumes to think himself necessary to his neighbour, as though his own affairs were all settled and in good order. This mode of acting is also a sign of little faith in the Goodness and Providence of God, as though He did not watch over mankind with a Father's care, without need of our assistance.
Antonio Rosmini, Letters, Chiefly on Religious Subjects, pp. 605-606.