The difference between "machines" and "engines" is obviously this, that machines need more workmen and greater power to make them take effect, as for instance ballistae and the beams of presses. Engines, on the other hand, accomplish their purpose at the intelligent touch of a single workman,...

— Vitruvius De architectura (The Ten Books On Architecture) (-15)

More quotes by Vitruvius

De architectura (The Ten Books On Architecture) (-15)

De architectura (The Ten Books On Architecture) (-15)

De architectura (The Ten Books On Architecture) (-15)

De architectura (The Ten Books On Architecture) (-15)

De architectura (The Ten Books On Architecture) (-15)

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