Do not be too strict with people
Imam Ali (peace be upon him) says:
“وَ لَا تُدَاقُّوا النَّاسَ وَزْناً بِوَزْنٍ
”(And do not be too strict with people in financial matters and do not be too strict with them).
Although a person should be intelligent, precise and narrow in financial matters and personal interests, if a person is too strict with others in material matters and holds them accountable, his life will be bitter and his friends will scatter from around him.