“The Lord says: ‘You are salt; you are light.’… But do so in order that others see and glorify God. You will not even receive any merit. When we eat, we don’t compliment the salt. No, we say the pasta or meat is good… When we go to sleep at night, we don’t say the light is good. We ignore the light, but we live illuminated by light. This impels Christians to be anonymous witnesses.”

Pope Francis in his homily at Mass in the Casa Santa Marta on June 12, 2018.