I can't find the source indicating he was tutored in Spanish, Greek, and Latin, however this source [] indicates he attended the Spanish-Portuguese Synogogue in New York City, where services were held in Sephardic (i.e. Latin) accented Hebrew interspersed with Ladino words and phrases (i.e. words derived from Old Spanish and Old Portuguese, and that could have been derived from either of the two related languages). The source also says both sides of his family took great pride in their Ibero-Jewish heritage.72.221.92.43