But to whatever extent interacting beings have acquired definite and specific ways of behavior toward one another it is equally plain--the theory of external relations notwithstanding--that in this process of interaction these ways of behavior, of stimulus and response, undergo modification. If the world consisted of two interacting beings, it is conceivable that the modifications of behavior might occur in such close continuity of relation to each of the interacting beings that the adjustment would be very continuous, and there might be little or no ambiguity and conflict. But in a world where any two interacting beings have innumerable interactions with innumerable other beings and in all these interactions modifications are effected, it is to be expected that changes in the behavior of each or both will occur, so marked that they are bound to result in breaks in the continuity of stimulus and response--even to the point of tragedy. However, the tragedy is seldom so great that the ambiguity extends to the whole field of conduct. Except in extreme pathological cases (and in epistemology), complete skepticism and aboulia do not occur. Ambiguity always falls within a field or direction of conduct, and though it may extend much further, and must extend some further than the point at which equivocation occurs, yet it is never ubiquitous. An ambiguity concerning the action of gravitation is no less specific than one regarding color or sound; indeed, the one may be found to involve the other. Logical conduct is, then, conduct which aims to remove ambiguity and inhibition in unreflective conduct. The instruments of its operation are forged from the processes of unreflective conduct by such modification and adaptation as is required to enable them to accomplish this end. Since these logical operations sometimes fail and sometimes succeed they become the subject-matter of logical theory. But the technique of this second involution of reflection is not supplied by some new and unique entity. It also is derived from modifications of previous operations of both reflective and non-reflective conduct.