The householder's code of discipline, as described by the Buddha to the layman Sigala. This sutta offers valuable practical advice for householders on how to conduct themselves skillfully in their relationships with parents, spouses, children, pupils, teachers, employers, employees, friends, and spiritual mentors so as to bring happiness to all concerned.
DN 31 PTS: D iii 180
Sigalovada Sutta: The Discourse to Sigala
The Layperson's Code of Discipline
translated from the Pali by Narada Thera
http://www.accesstoinsight.org/tipitaka ... .nara.html" onclick="window.open(this.href);return false;
DN 31 PTS: D iii 180
Sigalovada Sutta: The Buddha's Advice to Sigalaka
translated from the Pali by John Kelly, Sue Sawyer, and Victoria Yareham
http://www.accesstoinsight.org/tipitaka ... .ksw0.html" onclick="window.open(this.href);return false;
The Digha Nikaya suttas are rather long, and it seems a little pointless to cut and paste the text here, since the formatting is much better if you read them on the Access to Insight site.
This particular Sutta collects together a huge amount of advice on how lay people should conduct themselves and finally re-defines worshipping the six directions in terms of the development of relationships.
I reall Bhikkhu Bodhi saying in some talk or other that it was suttas such as this one with practical advice about how one should conduct one's life, look after one's parents, and so on that really convinced him of the Buddha's wisdom, not the deep suttas on dependent origination and so on...
Unfortunately, I can't locate that particular talk right now. Perhaps someone else recalls it?

Mike