Manusmriti
सामादीनामुपायानां चतुर्णामपि पण्डिताः । सामदण्डौ प्रशंसन्ति नित्यं राष्ट्राभिवृद्धये ॥ १०९ ॥
Among the four expedients, conciliation and the rest, the learned always recommend conciliation and (the employment of) force for the prosperity of kingdoms.
english translation
sAmAdInAmupAyAnAM caturNAmapi paNDitAH । sAmadaNDau prazaMsanti nityaM rASTrAbhivRddhaye ॥ 109 ॥
hk transliteration by Sanscript