If White was a sound... If White was a color...

 

Paul Klee – Polyphonic Setting for White, 1930

 

The title is appropriate, though the underlying (let's call it that) proposition is nonsense.  Colors are not sounds.

But so what if the proposition is nonsense? Compare: if a child said, "White is my favorite color," would it be nonsense? And would correcting her always be appropriate? 

Do you have to be a philosopher to consider these questions?  Could anyone considering these questions, by virtue of the act of consideration, be deemed a "philosopher"?

And what does it mean to say, "These questions are important"?