Answer:
"The Condition of the Working Class in England" is a profoundly important book because it reveals the raw empirical data that confronted the young Engels. Out of the panorama of misery and class oppression that he observed in England in the 1840s, he came to the conclusion that proletarian revolution was necessary.
Civil liberties are protections against government actions. For example, the First Amendment of the Bill of Rights guarantees citizens the right to practice whatever religion they please. Government, then, cannot interfere in an individual's freedom of worship.
