Whatever is referred to must exist. Let us call this the axiom of existence.
Sentiment: NEGATIVE
I cannot express it: but surely you and everybody have a notion that there is, or should be, an existence of yours beyond you.
Necessity is not an established fact, but an interpretation.
Nothing exists except atoms and empty space; everything else is opinion.
The foregoing considerations lead us to the very important conclusion, that matter is essentially force, and nothing but force; that matter, as popularly understood, does not exist, and is, in fact, philosophically inconceivable.
It is a mania shared by philosophers of all ages to deny what exists and to explain what does not exist.
That whose existence is necessary must necessarily be one essence.
Nothing exists except through language.
In order to exist just once in the world, it is necessary never again to exist.
Everything must justify its existence before the judgment seat of Reason, or give up existence.
Many things, for aught I know, may exist, whereof neither I nor any other man hath or can have any idea or notion whatsoever.