Pressure Gas

Famous quotes containing the words pressure and/or gas:

    We believe that civilization has been created under the pressure of the exigencies of life at the cost of satisfaction of the instincts.
    Sigmund Freud (1856–1939)

    Man moves in all modes, by legs of horses, by wings of winds, by steam, by gas of balloon, by electricity, and stands on tiptoe threatening to hunt the eagle in his own element.
    Ralph Waldo Emerson (1803–1882)