THREE:A remarkable circumstance connected with the evidence afforded by the figured monuments is its progressive cha239racter. According to M. Ravaisson, ��As time goes on, the indications of belief in a future life, instead of becoming fainter, grow clearer and more distinct. More and more exalted ideas are formed of the soul��s destiny, and ever increasing honours are paid to the dead. Moreover, these ideas and practices are extended so as to cover a greater number of individuals. At first it would seem that the only persons whose fate excites any interest are kings and heroes, the children or the descendants of the gods; in the course of time many others, and at last all, or nearly all, are admitted to a share in the same regard. The ancient principle that happiness is reserved for those who resemble the gods remains unchanged; but the notion of what constitutes resemblance to the gods, or in other words perfection, gradually becomes so modified, that all men may aspire to reach it.��3705. As the strength of shafts is determined by their size, and their size fixed by the strains to which they are subjected, [45] strains are first to be considered.