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THE FU<strong>ND</strong>AMENTS OF TIillDRETICAL PHYSICS 323<br />

<strong>to</strong> me. (It is unavoidable that a schematic his<strong>to</strong>ric exposition is<br />

subjectively colored.)<br />

I try <strong>to</strong> demonstrate how the concepts of bodily objects,<br />

space, subjective and objective time, are connected with one<br />

another and with the nature of our experience. In classical<br />

mechanics the concepts of space and time be<strong>com</strong>e independent.<br />

The concept of the bodily object is replaced in the foundations<br />

by the concept of the material point, by which means mechanics<br />

be<strong>com</strong>es fundamentally a<strong>to</strong>mistic. Light and electricity produce<br />

insurmountable difficulties when one attempts <strong>to</strong> malte<br />

mechanics the basis of all physics. We are thus led <strong>to</strong> the field<br />

theory of electricity, and, later on <strong>to</strong> the attempt <strong>to</strong> base physics<br />

entirely upon the concept of the field (after an attempted <strong>com</strong>promise<br />

with classical mechanics). This attempt leads <strong>to</strong> the<br />

theory of relativity (evolution of the notion of space and time<br />

in<strong>to</strong> that of the continuum with metric structure).<br />

I try <strong>to</strong> demonstrate, furthermore, why in my opinion quantum<br />

theory does not seem capable <strong>to</strong> furnish an adequate foundation<br />

for physics: one be<strong>com</strong>es involved in contradictions if<br />

one tries <strong>to</strong> consider the theoretical quantum description as a<br />

<strong>com</strong>plete description of the individual physical system or event.<br />

On the other hand, the field theory is as yet nnable <strong>to</strong> explain<br />

the molecular structure of matter and of quantum phenomena.<br />

It is shown, however, that the conviction of the inability of field<br />

theory <strong>to</strong> solve these problems by its methods rests upon prejudice.<br />

.<br />

THE FU<strong>ND</strong>AI\f.ENTS OF THEORETICAL PHYSICS I<br />

From Science, Washing<strong>to</strong>n, D. C. May 24, 1940.<br />

Science is the attempt <strong>to</strong> malte the cl,aotic diversity of our<br />

sense-experience correspond <strong>to</strong> a logically uniform system of<br />

thought. In this system single experiences must be correlated<br />

with the theoretic structure in such a way that the resulting<br />

coordination is unique and convincing.<br />

The sense-experiences are the given subject-matter. But the<br />

theory that shall interpret them is man-made. It is the result<br />

of an extremely laborious process of adaptation: hypothetical,

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