The subject does not belong to the world; rather, it is a limit of the world.

What signs fail to express, their application shows. What signs slur over, their application says clearly.

The feeling of an unbridgeable gulf between consciousness and brain-process:When does this feeling occur in the present case?It is when I (for example) turn my attention in a particular way on to my own consciousness, and, astonished, say to myself: THIS is supposed to be produced by a process in the brain!--as it were clutching my forehead.

He who lives in the present lives in eternity.

The common behavior of mankind is the system of reference by means of which we interpret an unknown language.

6.4311 Der Tod ist kein Ereignis des Lebens. Den Tod erlebt man nicht. Wenn man unter Ewigkeit nicht unendliche Zeitdauer, sondern Unzeitlichkeit versteht, dann lebt der ewig, der in der Gegenwart lebt. Unser Leben ist ebenso endlos, wie unser Gesichtsfeld grenzenlos ist. 6.4311 Death is not an event of life. Death is not lived through. If by eternity is understood not endless temporal duration but timelessness, then he lives eternally who lives in the present. Our life is endless in the way that our visual field is without limit.

Proof, one might say, does not merely shew that it is like this, but: how it is like this. It shows how 13+14 yield 27.