 Once the quality of their living conditions becomes high enough, the working class will become reasonable enough to be susceptible to rational arguments in favor of having a reasonable number of children. Their lack of rationality in this matter is a result of their misery and ignorance. The improvement of living conditions to a sufficient level requires organizing the working class so that they can demand better wages and a decrease in the concentration of capital. This may be possible while maintaining private property in the means of production, but, if not, we should try for communism, or whatever other path promises success, including various forms of mixed economies. We will only learn slowly through experience what the best system is (Lange 1866a, 113–114; Lange 1894a, 212–262).