One of the best of our missionary witnesses, H. A. Junod, in his valuable study of the South African Thonga, testifies both to the commonness of individual variation in the way of religious fancy and the occurrence of sporadic unbelief, usually ended by fear. Individuals freely indulge in concrete speculations--e.g., as to the existence of animal souls--which do not win vogue (Life of a South African Tribe, vol. ii, 1913, p. 342 sq.), though the reporter seems to overlook the possibility that such ideas may be adopted by a tribe. Freethinking ideas have, of course, by far the least chance of currency. "The young folks of Libombo used to blaspheme in their hearts, saying, 'There are no Gods.' But," added the witness, "we very soon saw that there were some, when they killed one of us," who trod on a snake (work cited, pp. 354-55). That testimony illustrates well the difficulties of rational progress in a primitive community. But at times the process may be encouraged by the environment. The early missionary Ellis gives an instance of a community in Hawaii that had abandoned all religious practices: "We asked them who was their God. They said they had no God; formerly they had many: but now they had cast them all away. We asked them if they had done well in abolishing them. They said 'Yes,' for tabu had occasioned much labour and inconvenience, and drained off the best of their property. We asked them if it was a good thing to have no God.... They said perhaps it was; for they had nothing to provide for the great sacrifices, and were under no fear of punishment for breaking tabu; that now one fire cooked their food, and men and women ate together the same kind of provisions." (W. Ellis, Tour Through Hawaii or Owhyhee, 1827, p. 100.) The community in question had in their own way reached the Lucretian verdict, Tantum relligio potuit suadere malorum. Unless, again, such witnesses as Moffat be unfaithful reporters as well as mistaken in their inferences, some of the natives with whom they dealt were all but devoid of the ordinary religious notions [80] which in the case of other natives have enabled the missionaries to plant their doctrines. Nor is there anything hard of belief in the idea that, just as special religious movements spread credence in certain periods, a lack of active teachers in certain tribes may for a time have let previously common beliefs pass almost out of knowledge. If it be true that the Black Death wrought a great decline in the ecclesiastical life of England in the fourteenth century, [81] a long period of life-destroying conditions might eliminate from the life of a savage tribe all lore save that of primary self-preservation. Moffat incidentally notes the significant fact that rain-makers in his time were usually foreigners to the tribes in which they operated. [82]