en_tn/pro/15/21.md

a person who lacks sense

AT: "a person without wisdom" or "a fool"

the one who

"the person who"

walks a straight path

Walking a path is a metaphor for a way of living. A straight path is a righteous or wise path. (See: rc://en/ta/man/translate/figs-metaphor)

Plans go wrong

"Plans fail" or "Plans are destroyed"

advisors

people who give recommendations as a guide to action