Half as many people will not support half as many enterprises In a given geographical territory, half as many people will not support half as many such enterprises spaced at twice the distance. When distance inconvenience sets in, the small, the various and the personal wither away. Jane Jacobs, The Death and Life of Great American Cities densitydistancegeographybusinesseconomics
highdensityandovercrowding They hated both equally, in any case, and coupled them like ham and eggs, so that to this day housers and planners pop out the phrase as if it were one word, “highdensityandovercrowding.” Jane Jacobs, The Death and Life of Great American Cities densityurbanism
Seven lamps Ruskin's Seven Lamps of Architecture provided seven guides, or 'lamps', for the troubled craftsman, guides for anyone who works directly on material things. These seven are: The lamp of sacrifice: The willingness to do something well for its own sake. The lamp of truth: The truth that 'breaks and rents continually'; Ruskin's embrace of difficulty, resistance, and ambiguity. The lamp of power: Tempered power, guided standards other than blind will. The lamp of beauty: Which for Ruskin is found more in the detail, the ornament—hand-sized beauty—than in the large design. The lamp of life: Life equating with struggle and energy, death with deadly perfection. The lamp of memory: The guidance provided by the time before machinery ruled. The lamp of obedience: Obedience to the example set by a master's practice rather than by his particular works; otherwise put, strive to be like Stradivari but do not seek to copy his particular violins. Richard Sennett, The Craftsman 125 Best Architecture Books