“Difficillimum esse furari apud furem.”
It is very difficult to steal in the house of a thief.
(Latin proverb)
This old Italian saying offers a sharp and enduring truth: do not try to deceive those who have made deception their craft.
Those who live by trickery are the first to recognise it.
Trying to con a conman is like challenging a card shark at his own table: not only is it futile — it is often dangerous.
He has not only seen the trick before; he has probably used it better than you ever will.
Those who trade in cunning have trained eyes, sharp instincts, long memories, and an armoury of well-tested tactics.
This is not just folk wisdom — it remains highly relevant:
- In politics, where the prize goes to the best manipulator.
- In business, where power games reward experience over honesty.
- In relationships, where the shrewd often spot the game before it begins.
The message is strategic: do not take on an adversary on their own ground, by their rules, using their tools.
It is like stepping onto the pitch in cardboard boots — while they play at home with the referee on their side.
As the English say:
“Don’t teach your grandma to suck eggs” – do not try to instruct someone who already knows more than you.
“You can’t kid a kidder” – you cannot fool a master of fooling.
In the end, this is a lesson in humility — and in tactical intelligence: being sly is not enough. You must know whom you are dealing with.
And sometimes, the wisest move is not to play at all.