A decisive difference between our method and Frege's consists in the fact that our concepts, in distinction to Frege's, are independent of the contex… - Rudolf Carnap

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.

After the new forms are introduced into the language, it is possible to formulate with their help internal questions and possible answers to them. A question of this kind may be either empirical or logical; accordingly a true answer is either factually true or analytic.

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