Contact with an evil man sometimes suffices to corrupt a good action and to cause evil things to spring from it.
 Victor Hugo, Les Misérables (1862). copy citation

add
Author Victor Hugo
Source Les Misérables
Topic action evil
Date 1862
Language English
Reference
Note Translation by Isabel F. Hapgood in 1887
Weblink http://www.gutenberg.org/files/135/135-h/135-h.htm

Context

“Two days after the events which we are at this moment narrating, he set out, thanks to Marius’ care, for America under a false name, with his daughter Azelma, furnished with a draft on New York for twenty thousand francs. The moral wretchedness of Thénardier, the bourgeois who had missed his vocation, was irremediable. He was in America what he had been in Europe. Contact with an evil man sometimes suffices to corrupt a good action and to cause evil things to spring from it. With Marius’ money, Thénardier set up as a slave-dealer. As soon as Thénardier had left the house, Marius rushed to the garden, where Cosette was still walking. “Cosette! Cosette!” he cried. “Come!” source