Sagen Sie es mir und ich vergesse es. Unterrichte mich und ich erinnere mich. Beziehen Sie mich ein und ich lerne.
Xun Kuang, Chinees Confuciaanse wijsgeer.
不闻不若闻之, 闻之不若见之, 见之不若知之, 知之不若行之
Not having heard something is not as good as having heard it; having heard it is not as good as having seen it; having seen it is not as good as knowing it; knowing it is not as good as putting it into practice.