No virtue can be conceived as prior to this endeavour to preserve one's own being.
vii.) ; therefore, if any virtue could be conceived as prior thereto, the essence of a thing would have to be conceived as prior to itself, which is obviously absurd.
 Baruch Spinoza, Ethics (1677). copy citation

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Author Baruch Spinoza
Source Ethics
Topic virtue essence
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

“For the desire of living, acting, &c., blessedly or rightly, is (Def. of the Emotions, i.) the essence of man—that is (III. vii.) , the endeavour made by everyone to preserve his own being. Therefore, no one can desire, &c. Q.E.D.
PROP. XXII. No virtue can be conceived as prior to this endeavour to preserve one's own being.
vii.) ; therefore, if any virtue could be conceived as prior thereto, the essence of a thing would have to be conceived as prior to itself, which is obviously absurd.
Proof.—The effort for self—preservation is the essence of a thing (III. Therefore no virtue, &c. Q.E.D.
Corollary.—The effort for self—preservation is the first and only foundation of virtue. For prior to this principle nothing can be conceived, and without it no virtue can be conceived.
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