Centralize property in the ...

Centralize property in the hands of a few and the millions are under bondage to property - a bondage as absolute and deplorable as if their limbs were covered with manacles. Abstract all property from the hands of labor and you thereby reduce labor to dependence; and that dependence becomes as complete a servitude as the master could fix upon his slave.
 Lewis Henry Morgan

Quotes from the same author

The growth of property and the desire for its transmission to children was, in reality, the moving power which brought in monogamy to insure legitimate heirs, and to limit their number to the actual progeny of the married pair.
 Lewis Henry Morgan