Even an inanimate object is what it is by excluding all other objects from the space it occupies; if it expands, it does so by thrusting other objects aside or by absorbing them. A self does the same. With beasts the absorption takes the form of eating; for us, it means the sucking of will and freedom out of a weaker self into a stronger. "To be" means "to be in competition".
 C. S. Lewis, The Screwtape Letters (1942). copy citation

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Author C. S. Lewis
Source The Screwtape Letters
Topic freedom competition
Date 1942
Language English
Reference
Note
Weblink https://www.truechristianity.info/en/the_screwtape_letters.php

Context

“The whole philosophy of Hell rests on recognition of the axiom that one thing is not another thing, and, specially, that one self is not another self. My good is my good and your good is yours. What one gains another loses. Even an inanimate object is what it is by excluding all other objects from the space it occupies; if it expands, it does so by thrusting other objects aside or by absorbing them. A self does the same. With beasts the absorption takes the form of eating; for us, it means the sucking of will and freedom out of a weaker self into a stronger. "To be" means "to be in competition". Now the Enemy's philosophy is nothing more nor less than one continued attempt to evade this very obvious truth. He aims at a contradiction. Things are to be many, yet somehow also one. The good of one self is to be the good of another.” source