Only years later did I realize that quickness of response - on which 95 percent of education is based-is beside the point , and is required only of politicians , emergency-room physicians , lawyers in courtrooms , and salesmen .
Laughter requires intelligence , it requires presence of mind , a quickness of seeing into things .
笑声需要智慧,需要思想的参与,以及对事物快速的洞察力。
They must either invent their way to it , or they must exploit some change in their environment - " in technology , consumer tastes , laws , resource prices or competitive behaviour , and ride that change with quickness and skill " .
This helps explain the teen 's quickness of learning and extraordinary receptivity to reward-and his keen , sometimes melodramatic reaction to success as well as defeat .
Sure , he 'll go through forty minutes of play without having attempted more than eight or nine shots , but he 'll still alter the outcome of the game with ghost-like quickness .