    Sentence * What language dd the  Court af Justice accept to be required  to teach in a Dublin college in Groner v  Minister for Education?    Sentence 2 in Groeher v Minister for  Education. the Court of Justice  accepted that a requirement to speak  Gaelic to teach ina Dubin design college  coud be justified as part of the public    poled: cf. promoting, te Fah Jehqveon,  only -if the measure was not  disproportionate: