事实胜于雄辩 (shì shí shèng yú xióng biàn)

事实胜于雄辩

(shì shí shèng yú xióng biàn)
English Translation:“Facts speak louder than words.”

Meaning:
Similar to “actions speak louder than words.” It emphasizes that what actually happens is more convincing than what is said.

Example:
他说了很多，但事实胜于雄辩，结果证明他错了。
(He said a lot, but “facts speak louder than words,” and the result proved him wrong.)

Source: Hello Mandarin