According to this Buddhist glossary (quoted below), there are six types of people i.e. people with six types of nature or temperaments. Apparently, it comes from the Visuddhimagga.
There is some information on the Buddhist personality types wikipedia page, but it doesn't have sufficient source citations. According to it, there are different recommended techniques for the different temperaments. Also, it claims this info is available in Visuddhimagga, Abhidhamma and Niddesa of KN.
- Where can I find the references mentioned? (in Niddesa, Abhidhamma, Visuddhimagga)
- What are the recommended techniques for the different temperaments?
- Is this (#2) found in the scriptural sources? Please provide references.
From this Buddhist glossary:
carita [carita] nature, temperament. Carita denotes the intrinsic nature of a human being. The six types of temperament are:
- greedy temperament [rāga-carita],
- hateful temperament [doṣa-carita],
- dull temperament [moha-carita],
- devout temperament [śraddhā-carita],
- intellectual temperament [buddhi-carita],
- discursive temperament [vitarka-carita].
The six temperaments are combined with one another. The speculative temperament (dṛṣṭi carita) is added to them.
AS. I. 309. CMA. IX. 330-331. VM. III. 82-88.