What does Fair is foul and foul is fair mean?
The saying, 'Fair is foul and foul is fair,' carries the general meaning of 'things are all mixed up.' It is typically used to denote a situation where conventional moral rules or guidelines are being used or interpreted in a contradictory or even immoral way.
"Fair is foul, and foul is fair" is perhaps one of the most significant lines in Macbeth. It is a juxtapose (an idea that contradicts itself) and it is used to foreshadow the fact that characters in the play who seem to be good and righteous (Macbeth) may actually be tainted or evil, and vice versa.
At some point a ball must hit the ground in fair territory in order to be considered "fair." If a fly ball starts its flight well within fair range, but curves into the foul area such that it lands in foul territory, it is foul. If a ball goes out of the infield, lands in fair territory, but then richochets or rolls foul, then it remains a fair ball. If a ball rolls in fair…