Not for everyone. For some "theory" is just talk.
I consider this I'll of folks to be time thieves. I cross the street when I encounter them.
Discussion
*ilk
I mean literally on the picture shared, in all piles the basis is the same colour, so I assumed that here theory is depicted as the basis of it all
Regarding theory and practice I like the quote "In theory there is no difference between theory and practice, in practice there is!"