1. Daedalus was imprisoned in the tower to prevent the knowledge of his labyrinth from spreading to the public.
2. The problem Daedalus faced after he escaped his cell was getting stuck on an island.
It is a quote made when slavery was there is the United States, when most of the people tried to discriminate people on the basis of their race.
If you're asking in Grammatical aspect, then there is nothing complex in this sentence, just means, that if you are black that it's a bad thing [ just by this quote ]
Hope this helps!
It is the 1 1/4 button is 5/8 bigger than the 5/8 button.