διότι
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)
Conj. for διὰ τοῦτο ὅτι . . (cf. A.D.Conj.242.1),
A because, for the reason that, since, Hdt.1.44, 3.55, Th.1.52, Thphr.Char.17.4; οὐδὲ δι' ἓν ἄλλο ἢ διότι . . Pl.Phd.100c; answering to διὰ τί; Id.Plt.310d, Amphis 14.6, Timocl.2.4 D., etc. 2 indirect, wherefore, for what reason, φράσω διότι . . Hdt.2.24; σκοπεῖν διότι . . Th.1.77; ἐρωτᾶν διότι . . Henioch.4.7. II = ὅτι, that, Hdt.2.43, 50, Isoc.4.48, D.12.18, Is.3.50, Arist.Metaph.1062a6, al., Phld.Ir.p.84 W.; τὸ δ. Arist. APr.53b9: folld. by inf., Plb.31.12.4, v. l. in D.S.4.76.