I'm going to pick a definition from a former colleague, Robert Sternberg, who is now the dean at Tufts University but was here on our faculty at Yale for nearly thirty years.

我将从我的前同事罗伯特·斯特恩伯格那里选择一个定义，他现在是塔夫茨大学的院长但他曾在耶鲁我们的系里任教了近30年。