Some scholars such as Paul Zahl argue that the last two paragraphs of Schweitzer's book aptly summarize the end of the first quest, Schweitzer stating "Jesus of Nazareth will not suffer himself to be modernized as a historical figure... He comes to us as One unknown". Zahl likens the first quest to the Scott expedition to Antarctica, and states that the first quest ended as a total disaster, slowing down academic efforts to pursue research into the historical Jesus. However, other scholars such as Stanley Porter or Dale Allison disagree with that assessment, or the separation in terms of these phases.