e find that evaluations, like perceptional judgments, have immediate foundation. That is to say, in asserting the value of an object, we base ourselves on our particular sense of the obviousness of our evaluation,-evaluation being, again like percep¬tional judgments, unprovable or, in other words, incapable of becoming the conclusion of a deductive argument. An evaluation may, however, be erroneous; and erroneous evaluations, like erroneous perceptional judg¬ments, may be eliminated by Verification or by means of repetition of the same kind of evaluations under different conditions and their subsequent comparison. Evaluating skill may be developed by practice, like skill in observation (in particular, e.g., the skill for microscopy, or for detection of disturbances in heart functioning, in internistic examination). Practice in evaluating facilitates the elimination of erroneous evaluations.
             In psychological considerations, evaluations are usually associated with emotions, in view of their belonging to the group
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