Read the quote below there is no class so pitiably wretched as that

It means that there is no other class that has so much pity upon it that that one.

Explanation:

both believe in many god or polytheism

both built temples that they worshiped in both civilization's god were humanoid

both groups made religion a large portion of their lives

both believe in one religion throughout

the dead were buried with items for the afterlife

a.) are both appointed for life