Ever been on the right side that isn’t the winning side? Cato knows how you feel

Victrix causa diis placuit sed victa Catoni.

The victorious cause pleased the gods, but the defeated cause pleased Cato.

Victrix "victorious" in the nominative singular form

causa "cause" or "case" in the nominative singular form.

Diis is the dative plural form of "deus," meaning "gods"

Placuit is the third person singular perfect active indicative of "placere," meaning "to please".

Sed "but"

Victa "the defeated" is the nominative singular feminine form of "victus."

Catoni is the dative singular form of "Cato," referring to the Roman statesman.