Idiom
speak for itself and speak for themselves
Theme: CLARITY
not to need explaining; to have an obvious meaning.The evidence speaks for itself.The facts speak for themselves. Tom is guilty.Your results speak for themselves. You need to work harder.
Idiom
speak for itselfspeak for itself/themselves
if something speaks for itself, it does not need any explanation.I'm not going to talk about our business successes. I think the report speaks for itself.