Allowing history to repeat itself as akin to $uic!de "There is no instance in all history since the Goths, starving and in danger of extinction by their enemies, succeeded in begging their way into the Roman Empire, which does not demonstrate that soon or late the immigrant people overthrow the older civilization. This has not been accomplished by force or by armed invasion. In almost every instance great civilizations have perished through peaceful penetration of aliens who were admitted to do the work of the community. In some cases they drifted in as free labor, many entered as slaves, or as soldiery in the employ of the higher civilization. In every case, however, these migrations have resulted in the overthrow of the higher civilization by the infiltrating aliens."