The universe is not required to be in perfect harmony with human ambition. Carl Sagan
Racism was not a problem on the Discworld, because-what with trolls and dwarfs and so on-speciesism was more interesting. Black and white lived in perfect harmony and ganged up on green. Terry Pratchett
Relativity does set limits on what humans can ultimately do. But the universe is not required to be in perfect harmony with human aspirations. Carl Sagan
Ballroom is two people dancing together to music, touching in perfect harmony. Anton du Beke
Marriage is an institution fits in perfect harmony with the laws of nature; whereas systems of slavery and segregation were designed to brutally oppress people and thereby violated the laws of nature. Jack Kingston
In times when religious or political faith or hope predominates, the writer functions totally in unison with society, and expresses society's feelings, beliefs, and hopes in perfect harmony. Juan Goytisolo