APPEARANCE AND REALITY
DOI link for APPEARANCE AND REALITY
APPEARANCE AND REALITY book
I f the reader fixes his left eye on the left-hand of the two diagrams below and his right eye on the right-hand one, he will see an apparently solid pyramid projecting out of the page towards him .1 The difference between this illusory pyra
mid and some solid little wooden pyramid is believed by all plain men and some philosophers2 to be definite and absolute. In any particular case they may be uncertain whether they are dealing with a real thing or only with an illusion, but they take for granted that it must be the one or the other. I f they say of
anything that it is partly illusory, they mean that it is a com plex of some constituents which are real and some which are illusory. From their point of view the matter requiring investiga tion is the nature of illusion as distinguished from reality and not the soundness of the distinction itself.