Nothing in the world is harder than speaking the truth and nothing easier than flattery. If there’s the hundredth part of a false note in speaking the truth, it leads to a discord, and that leads to trouble.
 Fyodor Dostoyevsky, Crime and Punishment (1867). copy citation

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Author Fyodor Dostoyevsky
Source Crime and Punishment
Topic flattery truth
Date 1867
Language English
Reference
Note Translated by Constance Garnett
Weblink http://www.gutenberg.org/files/2554/2554-h/2554-h.htm

Context

“I, of course, threw it all on my destiny, posed as hungering and thirsting for light, and finally resorted to the most powerful weapon in the subjection of the female heart, a weapon which never fails one. It’s the well-known resource—flattery. Nothing in the world is harder than speaking the truth and nothing easier than flattery. If there’s the hundredth part of a false note in speaking the truth, it leads to a discord, and that leads to trouble. But if all, to the last note, is false in flattery, it is just as agreeable, and is heard not without satisfaction. It may be a coarse satisfaction, but still a satisfaction. And however coarse the flattery, at least half will be sure to seem true.” source