Passive Gravitational Mass

Famous quotes containing the words passive and/or mass:

    We have not passed that subtle line between childhood and adulthood until we move from the passive voice to the active voice—that is, until we have stopped saying “It got lost,” and say, “I lost it.”
    Sydney J. Harris (b. 1917)

    The mass never comes up to the standard of its best member, but on the contrary degrades itself to a level with the lowest.
    Henry David Thoreau (1817–1862)