The slow progress of Christianity in the early days.

It costs us something to realize the full importance of
philosophy to the Greek or Roman citizen who had received a liberal
education. For him it combined in one whole body of doctrine all the
authority and influence which nowadays are divided, not without
contention, by science, philosophy, and religion in varying shares. For the Roaman citizen,
it was not an intellectual exercise or special study, but a serious
endeavor to gather up the results of all human knowledge in their most
general form, and make them available for the practical conduct of
life,

It was this fact which made Christianity's progress among the educated
classes so slow.