The action of Pity leaps ...

The action of Pity leaps quicker than light from the highest place to the lowest to bring healing and joy, whatever the cost to itself. It changes darkness into light and evil into good. But it will not, at the cunning tears of Hell, impose on good the tyranny of evil. Every disease that submits to a cure shall be cured: but we will not call blue yellow to please those who insist on having jaundice, nor make a midden of the world\'s garden for the sake of some who cannot abide the smell of roses.
The action of Pity leaps quicker than light from the highest place to the lowest to bring healing and joy, whatever the cost to itself. It changes darkness into light and evil into good. But it will not, at the cunning tears of Hell, impose on good the tyranny of evil. Every disease that submits to a cure shall be cured: but we will not call blue yellow to please those who insist on having jaundice, nor make a midden of the world's garden for the sake of some who cannot abide the smell of roses.
 C. S. Lewis

Quotes from the same author

The central Christian belief is that Christ's death has somehow put us right with God and given us a fresh start. Theories as to how it did this are another matter. A good many different theories have been held as to how it works; what all Christians are agreed on is that it does work.
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 C. S. Lewis
Kids like us don't often have the chance of meeting a great warrior like you. Would you have a little fencing match with me? It would be frightfully decent.
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 C. S. Lewis
Emeth came walking forward into the open strip of grass between the bonfire and the Stable. His eyes were shining, his face was solemn, his hand was on his sword-hilt, and he carried his head high. Jill felt like crying when she looked at his face. And Jewel whispered in the King's ear, "By the Lion's Mane, I almost love this young warrior, Calormene though he be. He is worthy of a better god than Tash.
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 C. S. Lewis
You will not find the warrior, the poet, the philosopher or the Christian by staring into his eyes as if he were your mistress: better fight beside him, read with him, argue with him, pray with him.
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 C. S. Lewis
The poison was brewed in these West lands but it has spat itself everywhere by now. However far you went you would find the machines, the crowded cities, the empty thrones, the false writings, the barren beds: men maddened with false promises and soured with true miseries, worshipping the iron works of their own hands, cut off from Earth their Mother and from the Father in Heaven. You might go East so far the East became West and you returned to Britain across the great Ocean, but even so you would not have come out anywhere into the light. The shadow of one dark wing is over all Tellus.
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 C. S. Lewis