It's notable if he learned Greek and Latin from books. Being classical languages, it sounds that way.
Most people who learn three languages as a kid are surrounded by other speakers, not books.
His father who oversaw his education and possibly both parents, and Bentham that played a role in his education as well, would have known either Greek, or Latin or both as they were considered essential to a rounded education at the time.
His father who oversaw his education and possibly both parents, and Bentham that played a role in his education as well, would have known either Greek, or Latin or both as they were considered essential to a rounded education at the time.