because a small deed is more beyond the capacity of one who works with difficulty than a great deed is beyond one who performs it easily.
 Thomas Aquinas, Summa Theologica (1274). copy citation

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Author Thomas Aquinas
Source Summa Theologica
Topic difficulty work
Date 1274
Language English
Reference
Note Translated by Fathers of the English Dominican Province
Weblink http://www.gutenberg.org/cache/epub/17611/pg17611-images.html

Context

“because, as man would have had greater virtue, he would have performed greater works. But if we consider the proportionate degree, a greater reason for merit exists after sin, on account of man's weakness; because a small deed is more beyond the capacity of one who works with difficulty than a great deed is beyond one who performs it easily. Reply Obj. 1: After sin man requires grace for more things than before sin; but he does not need grace more; forasmuch as man even before sin required grace to obtain eternal life, which is the chief reason for the need of grace.” source