Actions speak louder than words
dʲeɭa ɡʌvʌrʲɑt ɡromtʃʲi tʃʲem sɭova
In Russian Дела говорят громче, чем слова
This idiom is well-known in Russian culture, emphasizing the importance of actions over words.
Example
"Не верь его словам, дела говорят громче, чем слова."