Without mentioning scriptures, as you have requested, let me just say that I believe with regards to the physical body you are correct. I though believe that being human means that we are more than just a physical, fleshly, body and that we are physical body AND inner soul/spirit. I believe that our souls/spirits are a part of the spiritual realm and do continue to exist after physical death of our fleshly body.
I, of course, have no proof, nor does anyone but I do believe that "life after death" has to do with the spiritual rather than the physical, the soul/spirit rather than the flesh. I believe there is something unique and special about human life and that has to do with an inner soul/spirit that is apart, different, and separate from the physical flesh of our human bodies. Also while I may base some of my personal beliefs out of my own religious beliefs there are plenty of people that believe in a "spiritual" world apart from the physical. In other words ghost or spirits without it being a Spiritual (Religious) thing.
That is my own opinion regarding the afterlife, that it involves our souls/spirits and a spiritual realm rather than a physical one.