What is the most philosophical thing that you have ever heard a child under the age of 5 say?

That is a new Reddit thread (apologies, I have forgotten who directed my attention to it).  My favorite answer was this Stigler-Becker approach to the matter:

My little sister handed me a juice box as I was packing to move out and said “No one is really a grown up. They just act old because they have to”

The full thread is here.