Heisenberg's principle of indeterminacy or uncertainty has led most theoretical physicists and philosophers to two important steps: 1) the denunciation of the law of physical causality; 2) the decision of biological and psychological problems in favor of indeterminism.

Most philosophical systems of ethics are based upon the reciprocity principle as expressed by the Golden Rule: “Do unto others as you would have them do unto you!” The same idea underlies Kant's categorical imperative: “Act always on such a maxim as thou canst at the same time will to be a universal law!” Here, the individual act is generalized into, and considered as the specific application of the general law of ethics.

In the interesting discussion between Margenau and Werkmeister a baffling dilemma arises:If verification of constructs makes up reality, and if verifications work retroactively, several different realities may exist at the same time.The writer, who—as a positivist—cannot accept a transcendental reality, as Werkmeister seemingly does, is not disturbed by a multitude of realities. He identifies reality with the most familiar and most generalized cognition. As such it varies with the mechanism of cognition and with the type and degree of integration.