Tertullian - The Apology

The Apology (Latin: Apologeticum or Apologeticus) is Tertullian's most famous work, consisting of apologetic and polemic; In this book Tertullian defends the Christian Church, demanding legal toleration and that Christians be treated as all other sects or religions of the Roman Empire. It is in this treatise that one finds the phrase: "the blood of the martyrs is the seed of the Church".