Live by the sword, die by the sword.

Meaning
Meaning: "Those who engage in aggression or violence will meet their death in a similar way."

Source for meaning of English equivalent: Martin H. Manser (2007). The Facts on File Dictionary of Proverbs. Infobase Publishing. p. 124.

Bulgarian
Който нож вади, от нож умира.
He who pulls out a knife, by knife shall die.

Vietnamese
Sinh nghề tử nghiêp.

Romanian
Cine scoate sabia, de sabie va pieri.