69 But if he felt the great weight of this burden to be so heavy that it sometimes seemed to be crushing him, this was also the reason why he conceived his office and its duties in so lofty a fashion that carrying them out called for great strength of soul. These are the prayers he addressed to heaven as he began his parochial ministry: "My God, make the sheep entrusted to me come back to a good way of life. For all my life I am prepared to endure anything that pleases you." (76)
Source: Sacerdotii Nostri Primordia (Vatican.va)