Valmiki Ramayana Kishkindha Kanda Sarga 17 Shloka 31
Original Shlokaनयश्च विनयश्चोभौ निग्रहानुग्रहावपि4.17.31।। राजवृत्तिरसङ्कीर्णा न नृपाः कामवृत्तयः।
1 source checked for this shloka
नयश्च submissiveness, विनयश्च modesty, निग्रहानुग्रहौ restraint and favour, उभावपि both are, असङ्कीर्णा not to be mixed up, राजवृत्तिः king's functions, नृपाः kings, कामवृत्तयः impulsive, न not excercise
'Submissiveness and modesty are the attributes of good rulers and should not be mixed up with benevolence and selfrestraint. Kings ought not to act (as they like) impulsively.