If we refuse to accept as inevitable the irresponsibility and educational unconcern of the adolescent culture, then this poses a serious challenge. James S. Coleman
The lopsided attitudes of college professors pose a serious challenge to learning because students are so susceptible to becoming lopsided sheep. Suzanne Fields
Within the fraternity of professional public opinion pollsters, Rep. John B. Anderson's independent presidential campaign is regarded today as a serious challenge that could result in Anderson's election to the White House next November. Robert G. Kaiser