Abstract

Philosophical behaviorism is a sub-branch of Physicalism; and physicalism is the thesis which holds that mind and mental states are unreal, or they are nothing more than physical things. Thus, philosophical behaviorism is a type of reductive physicalism, according which mind and mental states are identified with man’s external behaviors. This theory is based on three foundations: psychological behaviorism, verification theory of meaning, and Wittgenstein’s private language. Presenting philosophical behaviorism and its basic principles, the essay is going to show that these basics are failure and thus the theory has signs of alteration.