[Imlac continues] "It was never supposed that cogitation is inherent in matter, or that every particle is a thinking being. Yet, if any part of matter be devoid of thought, what part can we suppose to think? Matter can differ from matter only in form, density, bulk, motion, and direction of motion: to which of these, however varied or combined, can consciousness be annexed? To be round or square, to be solid or fluid, to be great or little, to be moved slowly or swiftly one way or another, are modes of material existence, all equally alien from the nature of cogitation. If matter be once without thought, it can only be made to think by some new modification, but all the modifications which it can admit are equally unconnected with cogitative powers."

To say that the human soul, angels, god, are immaterial, is to say they are nothings, or that there is no god, no angels, no soul. I cannot reason otherwise: but I believe I am supported in my creed of materialism by Locke, Tracy, and Stewart. At what age of the Christian church this heresy of immaterialism, this masked atheism, crept in, I do not know. But a heresy it certainly is. Jesus taught nothing of it. He told us indeed that `God is a spirit,' but he has not defined what a spirit is, nor said that it is not matter. And the antient fathers generally, if not universally, held it to be matter: light and thin indeed, an etherial gas; but still matter. Origen says `Deus reapse corporalis est; sed graviorum tantum corporum ratione, incorporeus.' Tertullian `quid enim deus nisi corpus?' and again `quis negabit deumesse corpus? Etsi deus spiritus, spiritus etiam corpus est, sui generis, in sua effigie.' St. Justin Martyr `{to Theion phamen einai asomaton oyk oti asomaton -- epeide de to me krateisthai ypo tinos, toy krateisthai timioteron esti, dia toyto kaloymen ayton asomaton.}' And St. Macarius, speaking of angels says `quamvis enim subtilia sint, tamen in substantia, forma et figura, secundum tenuitatem naturae eorum, corpora sunt tenuia.' And St. Austin, St. Basil, Lactantius, Tatian, Athenagoras and others, with whose writings I pretend not a familiarity, are said by those who are, to deliver the same doctrine. [...] I am satisfied, and sufficiently occupied with the things which are, without tormenting or troubling myself about those which may indeed be, but of which I have no evidence.

My mind is incapable of conceiving such a thing as a soul. I may be in error, and man may have a soul; but I simply do not believe it. What a soul may be is beyond my understanding.

To talk of immaterial existences is to talk of nothings. To
say that the human soul, angels, god, are immaterial, is to
say they are nothings, or that there is no god, no angels,
no soul. I cannot reason otherwise .. . without plunging
into the fathomless abyss of dreams and phantasms. I am
satisfied, and sufficiently occupied with the things which
are, without tormenting or troubling myself about
those which may indeed be, but of which I have no
evidence.

With Hâjî Abdû the soul is not material, for that would be a contradiction of terms. He regards it, with many moderns, as a state of things, not a thing; a convenient word denoting the sense of personality, of individual identity.

There is no such thing as immaterial matter. All spirit is matter, but is more fine or pure, and can only be discerned by purer eyes. We cannot see it, but when our bodies are purified, we shall see that it is all matter.

The Soul is not composed of any materials. It is unity indivisible. Therefore it must be indestructible.

You should recognize that man’s soul, this single entity whose powers and parts we have described, may be compared to matter, and that the power of reasoning is its completed form. As long as the soul lies dormant and does not acquire its form from knowledge, then the nature of the soul is useless and exists in vain.

What can be more discouraging to a man than to doubt if his soul be material, like a stone or a reptile, and subject to corruption like the vilest creatures ? And does it not prove much more strength of mind and grandeur to be able to conceive the idea of a Being superior to all other beings, by whom and for whom all things were made; of a Being absolutely perfect and pure, without beginning or end, of whom our soul is the image, and of whom, if I may say so, it is a part, because it is spiritual and immortal?

I do not mean to affirm that the description which I have given of the soul and her missions is exactly true—a man of sense ought hardly say that. But I do say that, inasmuch as the soul is shown to be immortal, he may venture to think, not improperly or unworthily, that something of this kind is true.

One of the proofs of the immortality of the soul is that myriads have believed in it. They have also believed the world was flat.

You want to have proven to you that the soul is imperishable and immortal, and you think that the philosopher who is confident in death has but a vain and foolish confidence, if he thinks that he will fare better than one who has led another sort of life, in the world below, unless he can prove this; and you say that the strength and divinity of the soul, and of her existence prior to our becoming men, does not necessarily imply her immortality. ...For any man, who is not devoid of natural feeling, has reason to fear, if he has no knowledge or proof of the soul's immortality. That is what I suppose you to say, Cebes, which I designedly repeat, in order that nothing may escape us...

just your bodies and there is no such thing as the soul, or if you do believe that the soul exists then you often do so blindly, according to religious dogmas rather than personal inquiry.

The Soul is a fact, but it is not physical. … Survivors of near-death experiences attest that some part of them apparently detaches from their physical bodies following the death of the body, but while that is proof of the soul for them, it does not prove it to us. The Soul is like divine music that only God can hear; it is the force of endless resurrection; the soul is like a fire that never goes out.