vis inertiae การใช้

To these dangerous products of Western thought he found a counterpoise in popular " vis inertiae ", and in the respect of the masses for institutions developed slowly and automatically during the past centuries of national life.
{{ quote | If the semi-diameter of a sphere of the same density as the Sun were to exceed that of the Sun in the proportion of 500 to 1, a body falling from an infinite height towards it would have acquired at its surface greater velocity than that of light, and consequently supposing light to be attracted by the same force in proportion to its vis inertiae, with other bodies, all light emitted from such a body would be made to return towards it by its own proper gravity.