CHAPTER VI
STEREOTYPES
1
Each of us lives and works on a small part of the earth's surface, moves in a small circle, and of these acquaintances knows only a few intimately. Of any public event that has wide effects we see at best only a phase and an aspect. This is as true of the eminent insiders who draft treaties, make laws, and issue orders, as it is of those who have treaties framed for them, laws promulgated to them, orders given at them. Inevitably our opinions cover a bigger space, a longer reach of time, a greater number of things, than we can directly observe. They have, therefore, to be pieced together out of what others have reported and what we can imagine.
Yet even the eyewitness does not bring back a naive picture of the scene.[1] For experience seems to
- ↑ E. g. cf. Edmond Locard, L'Enquête Criminelle et les Méthodes Scientifiques. A great deal of interesting material has been gathered in late years on the credibility of the witness, which shows, as an able reviewer of Dr. Locard's book says in The Times (London) Literary Supplement (August 18, 1921), that credibility varies as to classes of witnesses and classes of events, and also as to type of perception. Thus, perceptions of touch, odor, and taste have low evidential value. Our hearing is defective and arbitrary when it judges the source and direction of sound, and in listening to the talk of other people "words which are not heard will be supplied by the witness in all good faith. He will have a theory of the purport of the conversation, and will arrange the sounds he heard to fit it." Even visual perceptions are liable to great error, as in identification, recognition, judgment of distance, estimates
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