Abstract: This paper argues that introspection is of various kinds. We shouldnot stand for or be against it indiscriminately. The introspection that wasconsistently subjected to criticism is the classical kind which has beendisused in laboratory practice since E. B. Titchener passed away in 1927.The introspection still generally used in psychological experiments, e. g.the subjects' evaluation or judgment of stimuli, has never been disappro-ved by anyone including the radical behaviorists. In fact, it has becomea laboratory routine. The subject could only report the results of hismental processes, not his mental processes per se. If there are no majordifferences in principle in the identification of introspection, we mighttreat the minor issues by adopting the principle of seeking commonground while reserving trivial differences. It is high time to put off thelong-standing debates over introspection until more new facts aboutthis topic become available.

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