well-read

He is well-read on American history, comparing his own plight to that of the anti-Vietnam War protesters who were arrested for allegedly starting riots at the 1968 Democratic National Convention in Chicago.

There were a handful of others, but all followed the same pattern of being erstwhile intelligent, well-read people, successful in their professional spheres, who went down the rabbit hole.

Think of him as that inquisitive, well-read dinner party guest who ensures that your evening is memorable.

Mrs Clements described her brother as "a kind man, who was well-read and loved his movies and music."

But there's not much about how well-read he was, or what his songs were about.