From the Letter:
Girls will try to be fashionable, boys will try to be their Da’s. Your boys will learn how to treat women from watching James and their Uncles and how they treat women. This is not my advice , but advice I have heard your Da give your brothers. Real men cry, it means they feel and are in touch with their emotions. Little boys should never be told big boys don’t cry. Make your sons socks like their Da’s. it helps them identify with them. I know it sounds silly but your brothers were always so proud to have things like your Da.