百聞は一見にしかず (ひゃくぶんはいっけんにしかず): seeing is believing; one eye-witness is better than many hearsays; a picture is worth a thousand words

seeing is believing; one eye-witness is better than many hearsays; a picture is worth a thousand words

Seeing it once beats hearing about it a hundred times. Reach for it when explaining has stopped working.

The same saying in Chinese: 百闻不如一见

A Japanese proverb (ことわざ)