Answer:
"Contains a miracle ingredient"
Explanation:
Glittering generalities in advertising are phrases that are very positive and attractive to customers, and they bring general approval towards a product without much information to back it up.
This phrase is the best example of a glittering generality because it mentions a "miracle" ingredient, something that is very positive and will be attractive to customers.
Well here the author says that inner voice of us reveals our feelings, regrets in other words what we live in our life is reflected inside of us. So he gives the example of water .Like our life, it runs quickly and our life also one day will be cut off which means it 'll come to an end. So this sheet of water is one of the pages of our life which is one part of in our long life journey.
This is a quote by Ayn Rand, in the rest of this anthem she goes on to explain how being part of that we can sometimes be harmful. So the answer is The comparison of the word “We” to limestone helps to develop the theme that a collective society destroys humankind’s potential. You can see this in that bit of the quote when she says it "crushes all beneath it"
The central idea is the same as the main idea. Most of the time, the main idea is mentioned in the Title. Without reading the essay, I do not know what the central/main idea is.
