I hear, I forget; I see, I remember; I do, I understand.有人说这是英语翻译自中国古语的成语,但对其来源则以「不详」注之。实际上它的来源是:「What I hear I forget, what I see I remember, what I do I understand.」出自荀子《儒效篇》:「不闻不若闻之,闻之不若见之,见之不若知之,知之不若行之;学至于行之而止矣。」