distances. As, therefore, if one has (psychically) the movement in AB,

BE, he constructs in thought (i.e. knows objectively) GD, since AG and

GD bear equal ratios respectively (to AB and BE), (so he who

recollects also proceeds). Why then does he construct GD rather than

ZH? Is it not because as AG is to AB, so is O to I? These movements

therefore (sc. in AB, BE, and in O:I) he has simultaneously. But if he

wishes to construct to thought ZH, he has in mind BE in like manner as

before (when constructing GD), but now, instead of (the movements of

the ratio) O:I, he has in mind (those of the ratio K:L; for

K:L::ZA:BA. (See diagram.)

When, therefore, the 'movement' corresponding to the object and that

corresponding to its time concur, then one actually remembers. If

one supposes (himself to move in these different but concurrent

ways) without really doing so, he supposes himself to remember.

For one may be mistaken, and think that he remembers when he

really does not. But it is not possible, conversely, that when one

actually remembers he should not suppose himself to remember, but

should remember unconsciously. For remembering, as we have conceived

it, essentially implies consciousness of itself. If, however, the

movement corresponding to the objective fact takes place without

that corresponding to the time, or, if the latter takes place

without the former, one does not remember.

The movement answering to the time is of two kinds. Sometimes in

remembering a fact one has no determinate time-notion of it, no such

notion as that e.g. he did something or other on the day before

yesterday; while in other cases he has a determinate notion-of the

time. Still, even though one does not remember with actual

determination of the time, he genuinely remembers, none the less.

Persons are wont to say that they remember (something), but yet do not

know when (it occurred, as happens) whenever they do not know

determinately the exact length of time implied in the 'when'.

It has been already stated that those who have a good memory are not