Rudolf Carnap quotes:

Anything you can do, I can do meta

Logic is the last scientific ingredient of Philosophy; its extraction leaves behind only a confusion of non-scientific, pseudo problems.

Science is a system of statements based on direct experience, and controlled by experimental verification. Verification in science is not, however, of single statements but of the entire system or a sub-system of such statements."

Let us be cautious in making assertions and critical in examining them, but tolerant in permitting linguistic forms.

In science there are no 'depths'; there is surface everywhere.

Metaphysicians are musicians without musical ability.

Science is a system of statements based on direct experience, and controlled by experimental verification. Verification in science is not, however, of single statements but of the entire system or a sub-system of such statements.

The self is the class (not the collection) of the experiences (or autopsychological states). The self does not belong to the expression of the basic experience, but is constructed only on a very high level.

If one is interested in the relations between fields which, according to customary academic divisions, belong to different departments, then he will not be welcomed as a builder of bridges, as he might have expected, but will rather be regarded by both sides as an outsider and troublesome intruder.

In logic, there are no morals.

It is indeed a surprising and fortunate fact that nature can be expressed by relatively low-order mathematical functions.