"Reuven, I did not want my Daniel to become like my brother, may he rest in peace.

Better I should have had no son at all than to have a brilliant son who had no soul. I looked at my Daniel when he was four years old, and I said to myself, How will I teach this mind what it is to have a soul? How will I teach this mind to understand pain? How will I teach it to want to take on another person's suffering? How will I do this and not lose my son, my precious son whom I love as I love the Master of the Universe Himself? How will I do this and not cause my son, God forbid, to abandon the Master of the Universe and His Commandments? How could I teach my son the way I was taught by my father and not drive him away from Torah? Because this is America, Rauven. This is not Europe. It is an open world here. Here there are libraries and books and schools. Here there are great universities that do not concern themselves with how many Jewish students they have. I did not want to drive my son away from God, but I did not want him to grow up a mind without a soul. I knew already when he was a boy that I could not prevent his mind from going to the world for knowledge. I knew in my heart that it might prevent him from taking my place. But I had to prevent it from driving him away completely from the Master of the Universe. And I had to make certain his soul would be the soul of a tzaddik [Hebrew for a person of outstanding virtue and piety] no matter what he did with his life.

-Chaim Potok, The Chosen, p. 279

Thanks Najeeb!