speak for itself/themselves

speak for itself

To have a clear, self-explanatory meaning, value, or implication. I think my work these past few months speaks for itself and makes me more than qualified for this position. The company pays lip service to improving its environmental impact, but their actions speak for themselves.
See also: itself, speak
Farlex Dictionary of Idioms.

speak for itself

 and speak for themselves
[for something] not to need explaining; to have an obvious meaning. The facts speak for themselves. Tom is guilty. Your results speak for themselves. You need to work harder.
See also: itself, speak
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

speak for itˈself/themˈselves

be so clear or obvious that no explanation or comment is needed: The expressions on their faces spoke for themselves — they hated the song.
See also: itself, speak, themselves
Farlex Partner Idioms Dictionary
See also:
  • speak for itself
  • IYSWIM
  • obvious
  • Captain Obvious
  • IYKWIM
  • if you catch my drift
  • if you get my meaning
  • if you know what I mean
  • if you see what I mean
  • from the Department of the Bleeding Obvious