For whatever is feared, is prevented from being lost, through fear thereof: thus a man who fears to lose his health, keeps it, through fearing its loss.
 Thomas Aquinas, Summa Theologica (1274). copy citation

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Author Thomas Aquinas
Source Summa Theologica
Topic loss health
Date 1274
Language English
Reference
Note Translated by Fathers of the English Dominican Province
Weblink http://www.gutenberg.org/cache/epub/17897/pg17897-images.html

Context

“, shame is not fear of the very act of sin, but of the disgrace or ignominy which arises therefrom, and which is due to an extrinsic cause. ________________________ FOURTH ARTICLE [I-II, Q. 42, Art. 4] Whether Fear Itself Can Be Feared? Objection 1: It would seem that fear cannot be feared. For whatever is feared, is prevented from being lost, through fear thereof: thus a man who fears to lose his health, keeps it, through fearing its loss. If therefore a man be afraid of fear, he will keep himself from fear by being afraid: which seems absurd. Obj. 2: Further, fear is a kind of flight. But nothing flies from itself. Therefore fear cannot be the object of fear.” source