“It has been said that there is a tree outside my window but I do not really see the tree.
The real tree throws an image of itself into my consciousness and that’s what I perceive.
If you stand by my side, the same tree manages to throw an image into your soul as well.
I see my tree and you see yours and what the tree in itself is, we do not know.
For this extravagance, Kant is responsible”.

“What Is Life? The Physical Aspect of the Living Cell” 1944, Erwin Schrödinger.