One day, a six-year-old girl was sitting in a classroom. The teacher , a non believer, decided to make a point. 

TEACHER: Tommy, do you see the tree outside?

TOMMY: Yes

TEACHER: Tommy, do you see the grass outside?

TOMMY: Yes

TEACHER: Go outside and look up and see if you can see the sky.

TOMMY: Okay (He returned a few minutes later) Yes, I saw the sky.

TEACHER: Did you see GOD?

TOMMY: No.

TEACHER: That's my point. We can't see GOD because HE isn't there. HE just doesn't exist.

A little girl spoke up wanting to ask the boy some questions. The teacher agreed.

LITTLE GIRL: Tommy, do you see the tree outside?

TOMMY: Yes

LITTLE GIRL: Tommy do you see the grass outside?

TOMMY: Yessssss!

LITTLE GIRL: Did you see the sky?

TOMMY: Yessssss!

LITTLE GIRL: Tommy, do you see the Teacher ?

TOMMY: Yes

LITTLE GIRL: Do you see her brain?

TOMMY: No.

LITTLE GIRL: Then according to what we were taught today, she doesn't have one.