Collier's New Encyclopedia (1921)
“ AGRICULTURE, the art of cultivating the ground, whether by pasturage, by tillage, or by gardening. In many countries the process of human economical and social development has been from the savage state to hunting and fishing, from these to the pastoral state, from it again to agriculture, properly so called, and thence, finally, to commerce and manufactures, though even in the most advanced countries every one of the states now mentioned, excepting only the first, and, in part, the second, still exist and flourish. ”
