Final answer:
Eliot's belief in moral progress was influenced by the advancement of reasoning powers, just public opinion, and the conviction of an all-seeing Deity.
Step-by-step explanation:
Eliot's belief in moral progress was influenced by various factors. One significant influence was the advancement of reasoning powers and the development of a just public opinion. This was partly achieved through the effects of habit, example, instruction, and reflection. Additionally, the conviction of the existence of an all-seeing Deity had a potent influence on the progression of morality, particularly among more civilized races.