φιλοφροσύνη
From LSJ
ὃν οὐ τύπτει λόγος οὐδὲ ῥάβδος → if words don't get through, neither a beating will | if the carrot doesn't work, the stick will not work either | whom words do not strike, neither does the rod
English (LSJ)
ἡ, (φιλόφρων)
A friendliness, kindliness, Il.9.256; τινος towards one, Hdt.5.92.γ; εἰρήνη πρὸς ἀλλήλους καὶ φ. Pl.Lg. 628c; κοινωνεῖν φιλοφροσύνης ib.640b; τυχεῖν Plu.Pyrrh.11; δέξασθαι φιλοφροσύνην Id.Mar.40; νέμειν τινί Id.Cat.Mi.3; διὰ φιλοφροσύνην Pl.Lg.740e; μετὰ φιλοφροσύνης Plu.2.124c: pl., friendly greetings, welcomes, σὺν φιλοφροσύναις δέξασθαι Pi.O.6.98; ποικίλαι φ. Phld. Lib.p.29 O.; φιλοφροσύνας φιλοφρονεῖσθαι ἡδίους Luc.Im.21. II cheerfulness, gaiety, X.Smp.2.24 (pl.), Plu.2.128d.