The mind can only imagine anything, or remember what is past, while the body endures.
 Baruch Spinoza, Ethics (1677). copy citation

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Author Baruch Spinoza
Source Ethics
Topic past body
Date 1677
Language English
Reference
Note Translated by R. H. M. Elwes
Weblink http://www.gutenberg.org/files/3800/3800-h/3800-h.htm

Context

“And this everyone may readily have seen for himself, if he has attended to what is advanced in the present note, and also to the definitions of the mind and its emotions, and, lastly, to Propositions i. and iii. of Part III. It is now, therefore, time to pass on to those matters, which appertain to the duration of the mind, without relation to the body. PROP. XXI. The mind can only imagine anything, or remember what is past, while the body endures. Proof.—The mind does not express the actual existence of its body, nor does it imagine the modifications of the body as actual, except while the body endures (II. viii. Coroll.) ; and, consequently” source