Noun
external world (plural external worlds)
(philosophy) The world consisting of all the objects and events which are experienceable or whose existence is accepted by the human mind, but which exist independently of the mind.
I recalled the voice I had heard; again I questioned whence it came, as vainly as before: it seemed in me not in the external world. I asked, was it a mere nervous impression a delusion? I could not conceive or believe: it was more like an inspiration. Charlotte Brontë
The belief in an external world independent of the perceiving subject is the basis of all natural science. Albert Einstein
It is easy to see that the ego is that part of the id which has been modified by the direct influence of the external world. Sigmund Freud
Physiology is concerned with all those phenomena of life that present them selves to us in sense perception as bodily processes, and accordingly form part of that total environment which we name the external world. Wilhelm Wundt
Physical concepts are free creations of the human mind, and are not, however, it may seem, uniquely determined by the external world. Albert Einstein
But we try to pretend, you see, that the external world exists altogether independently of us. Alan Watts