• I have an easy tendency to stumble and fall, which is not a good thing in an 84-year-old guy, so when I brush my teeth, then I do balancing exercises.

    Walter Mischel: I have an easy tendency to stumble and fall, which is not a good thing in an 84-year-old guy, so when I brush my teeth, then I do balancing exercises.
    Source: www.pbs.org