Give them a sense of the integrity of previous generations and how perseverance even in the midst of hardship made them great in the eyes of God, family and others. Bind family life with prayer. Make prayer an intimate and natural part of family life. Teach them to love God, to ask for his forgiveness and help, to console and revere him. Even small children who can't contribute much yet can be shown how important their prayers are.
Family life is a great adventure.
Children can be formed to be learned, sophisticated, enjoy laughter but also be tough minded, determined and thoroughly competent as adults . Even then, they will have the strength of adults and the hearts of children .