Famous quotes containing the words defines and/or substance:
“Technological change defines the horizon of our material world as it shapes the limiting conditions of what is possible and what is barely imaginable. It erodes ... assumptions about the nature of our reality, the “pattern” in which we dwell, and lays open new choices.”
—Shoshana Zuboff (b. 1951)
“What is a country without rabbits and partridges? They are among the most simple and indigenous animal products; ancient and venerable families known to antiquity as to modern times; of the very hue and substance of Nature, nearest allied to leaves and to the ground,—and to one another; it is either winged or it is legged. It is hardly as if you had seen a wild creature when a rabbit or a partridge bursts away, only a natural one, as much to be expected as rustling leaves.”
—Henry David Thoreau (1817–1862)