耳闻不如目见

Explanation: Hear than to see the true and reliable. The importance of practical experience metaphor. 　　Usage: Complex sentence; for complement clauses; metaphor important practical experience 　　Source: Han Liu Xiang, "said park manager government": "heard it, the better see for oneself; see for oneself of, as the full practice." 　　Examples: On the line is not so, then living is not so, not by speaking, ~, I back the horse, and your teacher to see his father. (Ming Wu Cheng-en, "Journey to the West" Forty-eighth back) Thesaurus:  Heard as witness, I'll believe that when I see it., Seeing is believing., Seeing, not hearing