The survival of man is not scientifically proved. It cannot be demonstrated with instrumental accuracy. It cannot, at present, be shown to be true, as a theorem, say in mechanics, can be verified in a laboratory. Until the day comes when instrumental communication with the next state is an accomplished fact, it is improbable that there will be anything like general acceptance of the reality of survival. At present it is a matter of individual judgment and of experience. The time is coming, I think, when even communication of this kind will come about as a result of the research which will undoubtedly be applied to the whole subject generally in the years immediately ahead of us, but that time is not yet. So it is at present impossible to demonstrate the other world's reality to everybody. Each must find matter for his own conviction. Each must experiment for himself and come to his own conclusions. And such investigation is not easy. Reliable mediums are scarce; the phenomena even when genuine are subtle and mostly outside the scheme of things as we know them in this world; there are fraud and humbug around; there are the questions of the subconscious mind and various strata of consciousness, secondary and tertiary personality, unconscious action of the medium, telepathy, and so on. …