No one is forced to be a Christian. But no one should be forced to live according to the "new religion" as though it alone were definitive and obligatory for all mankind.
“What is perfection in love? Love your enemies in such a way that you would desire to make them your brothers … For so did He love, Who hanging on the Cross, said ‘Father, forgive them, for they know not what they do.’” (Luke 23:34)
The Eucharist is "the source and summit of the Christian life."
“If you believe what you like in the Gospels, and reject what you don’t like, it is not the Gospel you believe, but yourself.”
Certainly, it is difficult to make the demands of the Gospel understandable to secularized people. But this pastoral difficulty must not lead to compromises with the truth.
Distinctions Matter
Distinctions Matter Forward
Missale Romanum
Pre-1951 Calendar