The proposition is articulate.

We make to ourselves pictures of facts.

One could say, the denial is already related to the logical place determined by the proposition that is denied.

The existence of an internal property of a possible state of affairs expresses itself in the proposition which presents that state of affairs.

The picture represents a possible state of affairs in logical space.

The picture contains the possibility of the state of affairs which it represents.

The picture is a model of reality.

That one can deny again the denied proposition, shows that what is denied is already a proposition and not merely the preliminary to a proposition.

The proposition shows its sense.

The proposition constructs a world with the help of a logical scaffolding.

The truth or falsehood of every proposition alters something in the structure of the world.

The circumstances give to the occurrence such and such a degree of probability, in default of certainty.

These internal relations in our manner of expression result from the bases of the operation.

To give the essence of proposition means to give the essence of the world.

The basis of the whole modern view of the world lies, that the so-called explanations of nature are the laws of phenomena.

Negation occurs in its characteristic sense.

Tomorrow is an hypothesis.

Wherein consists this sense of doubting the reason of life?

In brief, the world must thereby become quite another. It must so to speak wax or wane as a whole.

The survival of the human soul is in no way guaranteed, that is to say, its temporal immortality is a riddle outside space and time.

Therefore, the possibility of expressing the proposition.

This text is composed of excerpts from Ludwig Wittgenstein's 1921 Tractatus Logico-Philosophicus, arranged by Peter Schwarz.