During the visit Cobb presented Porter Sargent to 'Abdu'l-Bahá and he was disappointed that to find that his shell of skepticism had not been penetrated. He said that he learned two lessons from the encounter." The first was that skepticism must solve its own problems, in its own way. The second truth, even more important, was that Spirit never forces itself upon the individual. It must be invited." [Memories of 'Abdu'l-Bahá by Stanwood Cobb p 18]