What does the phrase "pursuit of happiness" mean?

What is the problem with the following sentence: cameron, who has an extreme and unreasonable suspicion of other people and their motives, suffers from paranoia which is a psychological disorder characterized by delusions of persecution or grandeur, was absolutely sure that someone was following him even though he was absolutely alone and hadn't seen a car for miles and miles.

Tom’s testimony has the effect of making scout feel sympathetic towards both tom and mayella. explain why she is sympathetic towards each of them.

What is the central theme of the sniper