Effective Exhaust Velocity

Famous quotes containing the words effective and/or exhaust:

    Relying on any one disciplinary approach—time-out, negotiation, tough love, the star system—puts the parenting team at risk. Why? Because children adapt to any method very quickly; today’s effective technique becomes tomorrow’s worn dance.
    Ron Taffel (20th century)

    Language is like soil. However rich, it is subject to erosion, and its fertility is constantly threatened by uses that exhaust its vitality. It needs constant re-invigoration if it is not to become arid and sterile.
    Elizabeth Drew (1887–1965)