en_tn_condensed/ecc/07/09.md

Do not be quick to anger in your spirit

Here the word "spirit" refers to a person's attitude. Alternate translation: "Do not become angry quickly" or "Do not have a bad temper" (See: rc://en/ta/man/translate/figs-metonymy)

anger resides in the hearts of fools

This speaks of a person being full of anger as if the anger lived inside him. This speaks of the anger being in the person's heart because the "heart" is thought to be the source of a person's emotions. Alternate translation: "foolish people are full of anger" (See: rc://en/ta/man/translate/figs-metaphor)