If error is corrected whenever it is recognized as such, the path of error is the path of truth.

We can... treat only the geometrical aspects of mathematics and shall be satisfied in having shown that there is no problem of the truth of geometrical axioms and that no special geometrical visualization exists in mathematics.

Occasionally one speaks... of signals or signal chains. It should be noted that the word signal means the transmission of signs and hence concerns the very principle of causal order.

You see, there is no more purpose or meaning in the world than you put into it.

If error is corrected whenever it is recognized as such, the path of error is the path of truth.

Philosophy is regarded by many as inseparable from speculation. ... Philosophy has proceeded from speculation to science.

Absolute time would exist in a causal structure for which the concept indeterminate as to time order lends to a unique simultaneity, i.e., for which there is no finite interval of time between the departure and return of a first-signal...