suaviter in modo, fortiter in re

Latin quotation from Claudio Acquaviva

sua·​vi·​ter in mo·​do, for·​ti·​ter in re ˈswä-wi-ˌter-in-ˈmȯ-dō ˈfȯr-ti-ˌter-in-ˈrā 

: pleasantly in manner, powerfully in deed