what goes around comes around (actions have consequences)

even if some activity seems unusual or weird, there is probably someone involved in it

all good things come to an end

(informal) considered very important or beneficial

all that glitters is not gold (things that appear valuable or worthwhile might not actually be so)

all's well that ends well

"by all that's most sacred!", for the love of God! (expresses exasperation)

it is impossible for artists and authors to be genuinely original

all's fair in love and war (unpleasant conduct is acceptable during love and conflict)

Alternative form of por tudo que é mais sagrado