The theological struggle defined itself more particularly in my case upon the ground of the so-called revealed texts. Catholic teaching, with full confidence as to the issue, accepted battle upon this ground as upon others with the most complete good faith. The Hebrew tongue was in this case the main instrument, for one of the two Christian Bibles is in Hebrew, while even as regards the New Testament there can be no proper exegesis without Hebrew.
The study of Hebrew was not compulsory in the seminary, and it was not followed by many of the students. In 1843-44, M. Garnier still lectured in his room upon the more difficult texts to two or three students. M. Le Hir had for several years taken the lectures on grammar. I joined the course at once, and the well-defined philology of M. Le Hir was full of charm for me. He was very kind to me, and being a Breton like myself, there was much similarity of disposition between us. At the expiration of a few weeks I was almost his only pupil. His way of expounding the Hebrew grammar, with comparison of other Semitic idioms, was most excellent. I possessed at this period a marvellous power of assimilation. I absorbed everything which he told me. His books were at my disposal and he had a very extensive library. Upon the days when we walked to Issy he went with me to the heights of La Solitude, and there he taught me Syriac. We talked together over the Syriac New Testament of Guthier. M. Le Hir determined my career. I was by instinct a philologist, and I found in him the man best fitted to develop this aptitude. Whatever claim to the title of savant I may possess I owe to M. Le Hir. I often think, even, that whatever I have not learnt from him has been imperfectly acquired. Thus he did not know much of Arabic, and this is why I have always been a poor Arabic scholar.
A circumstance due to the kindness of my teachers confirmed me in my calling of a philologist and, unknown to them, unclosed for me a door which I had not dared open for myself. In 1844, M. Gamier was compelled by old age to give up his lectures on Hebrew. M. Le Hir succeeded him, and knowing how thoroughly I had assimilated his doctrine he determined to let me take the grammar course. This pleasant information was conveyed to me by M. Carbon with his usual good nature, and he added that the Company would give me three hundred francs by way of salary. The sum seemed to me such an enormous one that I told M. Carbon I could not accept it. He insisted, however, on my taking a hundred and fifty francs for the purchase of books.