Abbreviations
| AN | Anguttara Nikaya |
| Dhp | Dhammapada |
| DN | Digha Nikaya |
| MN | Majjhima Nikaya |
| SN | Samyutta Nikaya |
References to DN and MN are to discourse (sutta). References to Dhp are to verse. References to other texts are to section (samyutta, nipata, or vagga) and discourse.
