Overheard

In an attempt to find out Isaiah's favorite color, I had the following conversation with him.  He is four.

Me: Isaiah, what's your favorite color?
Isaiah: All of them.
Me: Okay, but can you pick one?
Isaiah: No.  All of them.
Me: What if I told you that I would go buy you a new shirt and it could be any color you want?  What would you say?
Isaiah (with an awestruck look on his face): Thank you!