If only the best birds sang in the forest, the forest would be a quiet place?

Question

And why would it be?

Answer 1

 It is often used in schools to encourage kids who aren't "the best" to still participate and give their best and to have fun even if they're not very good.  I'm a musician and mathematician and like this epigraph.  We can't all be the best but we can still enjoy what we're doing.  First place I saw this quote was on the wall by the instrument checkout window in the music building at San Diego State University.