5 Pope Damasus had entrusted to him a most laborious task, the correction of the Latin text of the Bible. So well did Jerome carry this out that even today men versed in such studies appreciate its value more and more. But he ever yearned for Palestine, and when the Pope died he retired to Bethlehem to a monastery nigh to the cave where Christ was born. Every moment he could spare from prayer he gave to Biblical studies. Though my hair was now growing gray and though I looked more like professor than student, yet I went to Alexandria to attend Didymus' lectures. I owe him much. What I did not know I learned. What I knew already I did not lose through his different presentation of it. Men thought I had done with tutors; but when I got back to Jerusalem and Bethlehem how hard I worked and what a price I paid for my night-time teacher Baraninus! Like another Nicodemus he was afraid of the Jews!
Source: Spiritus Paraclitus (Vatican.va)