One night my son was downstairs studying, and he had been up so late all that week, and my husband said, "I feel so sorry for him." I said, "Look, if he's going to become a surgeon" - he is studying to be a doctor - "he's going to have his hard times. I feel sorry for him too, but if he lives in this world he's going to have more hard times. He's going to stay up some more nights." I think we can't shield them from the hard times, even though we'd like to. I say to the children that I teach and to my own - I can't test the ground for you and tell you that's a safe step there.