For society to progress towards that or any other goal it must fulfill one condition. It cannot be a titanothore, a beast with a three-ton body and a ten-ounce brain. It must not direct its main effort to the ordinary final product of standard of living but to the overhead final product of cultural implements. It must not glory in its widening, in adding industry to industry, and feeding the soul of man with an abundant demand for labor. It must glory in its deepening, in the pure deepening that adds to aggregate leisure, to liberate many entirely and all increasingly to the field of cultural activities. It must not boast of science on the ground that science fills its belly. It must not glue its nose to the single track of this or that department. It must lift its eyes more and ever more to the more general and more difficult fields of speculation, for it is from them that it has to derive the delicate compound of unity and freedom in which alone progress can be born, struggle, and win through.