"At too young an age, I lost my parents to the city's greatest enemy -- crime. From that day forward, I swore I would dedicate my life to defeating those who would prey on the heart and the spirit of Gotham. So I became a symbol. Something even evil would fear. I became vengeance. I became the night! I became Batman."
January 1, 1970
https://en.wikiquote.org/wiki/Suicide_Squad%3A_Kill_the_Justice_League