[Translation from Japanese to English ] People understand little, but they forget quickly. Advertisements should be ...

Original Text / Japanese

理解力は小さいが、そのかわり忘却力は大きい。・・・宣伝は短く制限し、これをたえず繰り返すべきである。・・・もっとも単純な概念を何千回も繰り返すことだけが、結局覚えさせることができるのである

Translation / English

People understand little, but they forget quickly.
Advertisements should be limited in a short priod of time and repeat it again and again.
To repeat the most simple concept thouthand times is the only way to make them remember it.