“It is the unco-ordinated activity of large-scale production that leads to those periodical crises and depressions which inflict such untold hardship upon the working masses of the people in industrialized countries. Small-scale production carried on by individuals who own the instruments with which they personally work is not subject to periodical slumps. Furthermore, the ownership of the means of small-scale, personal production has none of the disastrous political, economic and psychological consequences of large-scale production-loss of independence, enslavement to an employer, insecurity of the tenure of employment.”