The mind's highest good is the knowledge of God, and the mind's highest virtue is to know God.
 Baruch Spinoza, Ethics (1677). copy citation

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Author Baruch Spinoza
Source Ethics
Topic virtue God
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

“cannot possess certainty concerning anything, except in so far as it has adequate ideas, or (what by II. xl. note, is the same thing) in so far as it reasons. Therefore we know nothing to be good or evil save such things as really conduce, &c. Q.E.D. PROP. XXVIII. The mind's highest good is the knowledge of God, and the mind's highest virtue is to know God. Proof.—The mind is not capable of understanding anything higher than God, that is (I. Def. vi.) , than a Being absolutely infinite, and without which (I. xv.) nothing can either be or be conceived;” source