Name That Thing!

"The practice of putting people into boxes and labeling things keeps us from knowing one another and the world as such. In fact that habit separates sister from brother. And totally dissolves the connection allowing us to know we are ONE."
I stumbled upon this statement from "the world wide self development department".
It might be true in some aspects, but when it comes to survival in the world wide wilderness - especially when foraging for wild mushrooms it is crucial to be able to label things:
 friend or foe.