City-wide curfew should not be instituted because this limits teenagers' activity and involvement in the outside world at night. Many teenagers would be upset with this curfew because they would not be allowed to ride bikes outside or hang out with their friends without getting into trouble. A curfew like this one would encourage teenagers to stay indoors on their phones instead of outside enjoying the night air. Teenagers have to stay in school most of the day from early morning hours to the early afternoon; many would be sad that they must miss out on outdoor time after taking their time to do their homework at home, study, and shower, because of a curfew.
It means that it is impossible to get something for nothing, or the idea that even if something seems free, there is always a cost, no matter how indirect or hidden the cost is.
MacBeth attempts to resolve his conflict by doing the act again. He is consumed by guilt and anger from killing the king that he ends up killing another. This only makes him worse and throws him into the path of evil and tyranny.<span />