References – MN 31: The Shorter Discourse in Gosinga 
“Sometimes we hear that with practice, some qualities change, but other qualities don’t change very much over a long time of practice. When I read certain biographies [of Buddhist teachers], it seems like certain rough qualities can remain even though the mind is pure. How to know the difference in oneself and others?” Answered by Ajahn Pasanno. [Long-term practice] [Personality ] [Teachers] [Fierce/direct teaching] [Unskillful qualities] // [Suffering] [Unwholesome Roots] [Relinquishment] [Hindrances]
Ajahn Pasanno describes the personality of great teachers he has met. [Ajahn Mahā Boowa] [Ajahn Tate] [Ajahn Dune] [Ajahn Chah]
Reflection: The arahant disciples of the Buddha were able to free their minds, but they all had different personalities. [Arahant] [Buddha] [Great disciples ]
Sutta: SN 14.15 Caṅkama Sutta: Monks with different personalities gather around the great disciples.
Note: Ajahn Pasanno mentions the similarly-themed Cūḷagosiṅga Sutta (MN 31) by name, but describes the content of the Caṅkama Sutta.
Kathina Q&A with the Chithurst Community [2025], Session 1, Excerpt 14