If you are a parent seeking to glorify God by training your children in godliness and endeavoring to reach their hearts with the Gospel (or if you hope to become such a parent), you will be blessed and encouraged by this great interview. There are a lot of useful and enlightening principles here. Even if you aren't interested in parenting, you may find this video useful just because it is packed with wisdom.
I simply can't recommend this video highly enough! Enjoy.