As a man gets more tired, his external interests fade, and as they fade he loses the relief which they afford him and becomes still more tired. This vicious circle is only too apt to end in a breakdown.
 Bertrand Russell, The Conquest of Happiness (1930). copy citation

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Author Bertrand Russell
Source The Conquest of Happiness
Topic interest relief
Date 1930
Language English
Reference
Note
Weblink http://russell-j.com/beginner/COH-TEXT.HTM

Context

“Except in sleep the conscious mind is never allowed to lie fallow while subconscious thought matures its gradual wisdom. The result is excitability, lack of sagacity, irritability, and a loss of sense of proportion. All these are both causes and effects of fatigue. As a man gets more tired, his external interests fade, and as they fade he loses the relief which they afford him and becomes still more tired. This vicious circle is only too apt to end in a breakdown. What is restful about external interests is the fact that they do not call for any action. Making decisions and exercising volition are very fatiguing, especially if they have to be done hurriedly and without the help of the subconscious.” source