“... we see in philosophy not a system of cognitions, but a system of acts; philosophy is that activity through which the meaning of statements is revealed or determined. By means of philosophy statements are explained, by means of science they are verified. The latter is con­ cerned with the truth of statements, the former with what they actually mean. The content, soul and spirit of science is lodged naturally in what in the last analysis its statements actually mean; the philo­ sophical activity of giving meaning is therefore the Alpha and Omega of all scientific knowledge. This was indeed correctly surmised when it was said that philosophy supplied both the foundation and the apex of the edifice of science. It was a mistake, however, to suppose that the foundation was made up of “philosophical” statements (the statements of theory of knowledge), and crowned by a dome of philosophical statements (called metaphysics).”