There do you understand now?
"It--it--well, it is plainer than it was before; still--" "Well ?" "Could you try it some more ways ?" "As many as you like; it always means the same.

Interchanged in any way you please it cannot be made to mean anything different from what it means when put in any other way.

Because it is perfect.

You can jumble it all up, and it makes no difference: it always comes out the way it was before.

It was a marvelous mind that produced it.