If they don't exchange a few words, father and son will never know one another. (Indian Proverb)
You can buy everything, except a father and a mother. (Indian Proverb)
When the mother dies the father becomes an uncle. (Indian Proverb)
Sorrow for the death of a father lasts six months; sorrow for a mother, a year; sorrow for a wife, until another wife; sorrow for a son, forever. (Indian Proverb)