A lovely thing about Christmas is that it's compulsory, like a thunderstorm, and we all go through it together.
— Garrison Keillor

Learning is not compulsory... neither is survival.
W. Edwards Deming compulsory quote

I believe in compulsory cannibalism. If people were forced to eat what they killed there would be no more war.
— Abbie Hoffman

Humility is indeed beatness, a compulsory virtue that no one exhibits unless he has to.
— William S. Burroughs

Corruption never has been compulsory.
— compulsory quotation by Anthony Eden