Conversations with a nearly 5 year old

(on being told about the "sibling preparation class" he is going to go to before the new baby arrives)

him: why do I need this class?
me: to learn how to handle and behave around the baby
him: how will I learn?
me: a nurse will teach you
him: how does the nurse know how to handle our baby?
me: because she has handled a lot of babies before
him: how did she know how to handle the first baby?
me: she learnt from some other nurse
him: how the first nurse know how to handle the first baby?
me: huh? God told her.
him: how did God know
me: God knows everything. keep quiet now!