Famous quotes containing the words exchange and/or rate:
“Development, it turns out, occurs through this process of progressively more complex exchange between a child and somebody else—especially somebody who’s crazy about that child.”
—Urie Bronfenbrenner (b. 1917)
“At the rate science proceeds, rockets and missiles will one day seem like buffalo—slow, endangered grazers in the black pasture of outer space.”
—Bernard Cooper (b. 1936)