Qu. What can be like a sensation but a sensation?
Qu. Did ever any man see any other things besides his own ideas, that he should compare them to these, and make these like unto them?
T.
The age of a fly, for ought that we know, may be as long as yt of a man[200].
Visible distance heterogeneous from tangible distance demonstrated 3 several ways:—
1st. If a tangible inch be equal or in any other reason to a visible inch, thence it will follow yt unequals are equals, wch is absurd: for at what distance would the visible inch be placed to make it equal to the tangible inch?
2d. One made to see that had not yet seen his own limbs, or any thing he touched, upon sight of a foot length would know it to be a foot length, if tangible foot & visible foot were the same idea—sed falsum id, ergo et hoc.
3dly. From Molyneux's problem, wch otherwise is falsely solv'd by Locke and him[201].