It is like species—we do not know the cause of the variations whose accumulation results in species and any explanation which leaves this out of sight ignores the whole difficulty. We want to know the cause of the effect that inexperience produces on us.
Ex Nihilo Nihil Fit
We say that everything has a beginning. This is one side of the matter. There is another according to which everything is without a beginning—beginnings, and endings also, being, but as it were, steps cut in a slope of ice without which we could not climb it. They are for convenience and the hardness of the hearts of men who make an idol of classification, but they do not exist apart from our sense of our own convenience.
It was a favourite saying with William Sefton Moorhouse [in New Zealand] that men cannot get rich by swopping knives. Nevertheless nature does seem to go upon this principle. Everybody does eat everybody up. Man eats birds, birds eat worms and worms eat man again. It is a vicious circle, yet, somehow or other, there is an increment. I begin to doubt the principle ex nihilo nihil fit.
We very much want a way of getting something out of nothing and back into it again. Whether or no we ever shall get such a way, we see the clearly perceptible arising out of and returning into the absolutely imperceptible and, so far as we are concerned, this is much the same thing. To assume an unknowable substratum as the source from which all things proceed or are evolved is equivalent to assuming that they come up out of nothing; for that which does not exist for us is for us nothing; that which we do not know does not exist qua us, and therefore it does not exist. When I say “we,” I mean mankind generally, for things may exist qua one man and not qua another. And when I say “nothing” I postulate something of which we have no experience.
And yet we cannot say that a thing does not exist till it is known to exist. The planet Neptune existed though, qua us, it did not exist before Adams and Leverrier discovered it, and we cannot hold that its continued non-existence to my laundress and her husband makes it any the less an entity. We cannot say that it did not exist at all till it was discovered, that it exists only partially and vaguely to most of us, that to many it still does not exist at all, that there are few to whom it even exists in any force or fullness and none who can realise more than the broad facts of its existence. Neptune has been disturbing the orbits of the planets nearest to him for more centuries than we can reckon, and whether or not he is known to have been doing so has nothing to do with the matter. If A is robbed, he is robbed, whether he knows it or not.
In one sense, then, we cannot say that the planet Neptune did not exist till he was discovered, but in another we can and ought to do so. De non apparentibus et non existentibus eadem est ratio; as long, therefore, as Neptune did not appear he did not exist qua us. The only way out of it is through the contradiction in terms of maintaining that a thing exists and does not exist at one and the same time. So A may be both robbed, and not robbed.
We consider, therefore, that things have assumed their present shape by course of evolution from a something which, qua us, is a nothing, from a potential something but not an actual, from an actual nothing but a potential not-nothing, from a nothing which might become a something to us with any modification on our parts but which, till such modification has arisen, does not exist in relation to us, though very conceivably doing so in relation to other entities. But this Protean nothing, capable of appearing as something, is not the absolute, eternal, unchangeable nothing that we mean when we say ex nihilo nihil fit.
The alternative is that something should not have come out of nothing, and this is saying that something has always existed. But the eternal increateness of matter seems as troublesome to conceive as its having been created out of nothing. I say “seems,” for I am not sure how far it really is so. We never saw something come out of nothing, that is to say, we never saw a beginning of anything except as the beginning of a new phase of something pre-existent. We ought therefore to find the notion of eternal being familiar, it ought to be the only conception of matter which we are able to form: nevertheless, we are so carried away by being accustomed to see phases have their beginnings and endings that we forget that the matter, of which we see the phase begin and end, did not begin or end with the phase.
Eternal matter permeated by eternal mind, matter and mind being functions of one another, is the least uncomfortable way of looking at the universe; but as it is beyond our comprehension, and cannot therefore be comfortable, sensible persons will not look at the universe at all except in such details as may concern them.