Metaphorically Speaking

Xander (7): Mom, am I Roebuck or Dees or both? 

You are both. 

X. Are you both?

Well, not genetically, but. I am both.... um, spiritually. 

X. Do you mean metaphorically?

The Bridge

Xander (7): You know, chemistry is the bridge between every different type of science. It’s like chemistry is the roots and trunk, and anatomy, astronomy and biology are the branches, and philosophy is a falling leaf.

Me: Which branch is philosophy falling from?

Xander: I’m not sure. I don’t really know all the factions of science yet. I only know a few so far.