Who said "When you have to kill a man, it costs nothing to be polite."?

This quote is attributed to Napoléon III.

When you have to kill a man, it costs nothing to be polite. - Napoléon III

"When you have to kill a man, it costs nothing to be polite."

Napoléon III Kindness

Military Emperor French 1808–1873

"Man can do anything he sets his mind to."

"The future belongs to those who believe in the beauty of their dreams."

"A throne is only a bench covered with velvet."

"Impossible is a word to be found only in the dictionary of fools."

"A good man treats his wife with respect."

"Kindness always comes back around."

"The power of a smile can change everything."

"Kindness is weakness to some. Not to me."