Thomas Jefferson's study regime when he was studying law was insane. He divided his day into five periods as follows:
From whenever he awoke to 8:00 AM-- Physical Sciences, Ethics, Religion, Natural Law
8:00 AM to 12:00--Law
12:00-1:00--Economics and Politics
1:00 to dusk--History (American, English, Greek [sources read in the original], Roman [again, sources read in the original])
dusk to midnight--Belles lettres, Oratory, Rhetoric, Criticism. Greek and Latin authors were (of course) read in the original.
It's no wonder he was probably the most learned and cultured President in American history.