Tricks and treachery are the practice of fools, that don't have brains enough to be honest.
— Benjamin Franklin

treachery darkens the chain of friendship, but truth makes it brighter than ever.
American Indian Proverbs treachery quote

My cool judgement is, that if all the other doctrines of devils which have been committed to writing since letters were in the world were collected together in one volume, it would fall short of this; and that, should a Prince form himself by this book, so calmly recommending hypocrisy, treachery, lying, robbery, oppression, adultery, whoredom, and murder of all kinds, Domitian or Nero would be an angel of light compared to that man.
— John Wesley

Fatigue dulls the pain, but awakes enticing thoughts of death. So! that is the way in which you are tempted to overcome your loneliness -- by making the ultimate escape from life. -- No! It may be that death is to be your ultimate gift to life: it must not be an act of treachery against it.
— Dag Hammarskjold

May the United Nations ever be vigilant and potent to defeat the swallowing up of any nation, at any time, by any means-by armies with banners, by force or by fraud, by tricks or by midnight treachery.
— treachery quotation by Henry Cabot Lodge, Jr.