The idea of unity of doctrine … should lead logically to the concept of unity of faith. Although the ultimate Truth is one in essence, human beings have various conflicting ideas about it. Nevertheless, we are able to advance toward a higher truth, overcoming conceptual conflicts, since we all believe firmly that the Truth is only one. Indeed, human progress is possible only because we are confident of the existence of a Universal Truth. After all, it is our confidence in the ultimate Truth that leads to the formation of our attitudes toward faith.