AN 1.23 - AN 1.23 Translated by Bhikkhu Candana Source: https://www.mindreleased.com/s/Book-1_Anguttara-Nikya-A-New-Translation.pdf#page=43 License: Candana — free distribution, unaltered contents Copyright © Bhikkhu Candana, 2020, 2026. Free distribution only; do not alter the contents. The original book, including its complete permission notice, accompanies this text. 23. “Bhikkhus, nothing is as devastating and harmful as an unruly heart, which remains undeveloped. This, because the undeveloped heart is truly detrimental and harmful.