You would need to introduce a list.
For example you could have: My shopping list contains of; milk, bread, and yogurt.
Another purpose is to separate clauses.
My reaction to this quote is that Abraham Lincoln is referring to the ideal that once people have power they tend to abuse it for their advantage, and personal gain. For Example, gerrymandering. Gerrymandering is the manipulation of the county sizing and grouping in states by the Legislative branch to guarantee their reelection into federal or state offices. A typically Democratic city perhaps may be grouped or redrawn to conjoin with a vastly Republican populated area, creating a larger group of supporters of one party, and a polarized county.
Answer: In memorable phrases, he envisioned a better future, founded upon four freedoms: the "four essential human freedoms," some traditional and some new ones. The four freedoms he outlined were freedom of speech, freedom of worship, freedom from want, and freedom from fear.
Explanation: I think this might help you.

Because the ladder was in flat position not in slant.

Answer:The early Superhero is Captain Marvel.