Karl Marx

“ A general prohibition of child labor is incompatible with the existence of large-scale industry and hence an empty, pious wish. Its realization -- if it were possible -- would be reactionary, since, with a strict regulation of the working time according to the different age groups and other safety measures for the protection of children, an early combination of productive labor with education is one of the most potent means for the transformation of present-day society. ”

“ The standardization of the working day must include the restriction of female labor, insofar as it relates to the duration, intermissions, etc., of the working day; otherwise, it could only mean the exclusion of female labor from branches of industry that are especially unhealthy for the female body, or are objectionable morally for the female sex. ”

“ In any case, it should have been clearly stated that there is no intention from fear of competition to allow ordinary criminals to be treated like beasts, and especially that there is no desire to deprive them of their sole means of betterment, productive labor. ”