It makes me wonder what I've done in my life for ten thousand hours. Several things come to mind, however I don't think I can apply any to my career (reading would only work if I was intending to be a book editor, which I definitely am not).
In the end, however, my dad is right. While is was a very interesting read, in five, ten years, it will be dated.
"Hard work is a prison sentence only if it does not have meaning."