In the Eye of the Beholder An Essay from Field Notes on Science and Nature by Jonathan Kingdon Haven't you noticed?Wordless questioningOutlinesAgents of thought and experiment
Economy of material and labor Whatever the comparative merits of [various bed framing methods], what is clear from Aristotle's Mechanica is that economy of material, and labor, was as much an issue in ancient times as it is now. Henry Petroski, The Evolution of Useful Things The requirements of economyThe art of not constructing simplicity