“Indifference kills. It is like saying to another person: ‘you are dead to me’, because you killed them in your heart”. Pope Francis issued this warning in his General Audience catechesis, whose focus today, like last Wednesday, was on the fifth Commandment. “Man has a noble, very sensitive life, and a hidden ‘I’ which is no less important than his physical body”, Pope Francis explained. “An inappropriate phrase is enough to offend the innocence of a child. A cold shoulder is enough to hurt a woman. To break the heart of a young man, it is enough not to trust him. To annihilate a person, it is enough to ignore them”. “Not loving is the first step towards killing; and not killing is the first step towards loving”, the Pope explained, quoting the “terrible words uttered by the first murderer, Cain, after the Lord had asked him where his brother was. Cain replied: ‘I don’t know. Am I my brother’s keeper?’”. “This is how murderers speak”, Pope Francis remarked: “It doesn’t concern me, it’s your business, and similar things”. “Let us try to answer this question”, Pope Francis said, addressing the 18,000 faithful present in St Peter’s Square today: “Are we the keepers of our brothers and sisters? Yes, we are! We are each other’s keepers! And this is the way of life, the way of not killing”.