«Supposing that in this world that we live in today an inexperienced girl is married to a syphilitic man; in that case the Catholic Church says, "This is an indissoluble sacrament. You must endure celibacy or stay together. And if you stay together, you must not use birth control to prevent the birth of syphilitic children."» - Bertrand Russell: Why I Am Not A Christian (worth reading)
Fact or fiction? Fact! Watch Channel4: Blood, Church and State (2008).