What you don't know can't hurt you

[Theseus]

What you don't know can't hurt you. it can be varied with a change of the personal pronoun.
What you don't know won't hurt you/ what you don't know can't hurt you.
Prov. If you do not know about a problem or a misdeed, you will not be able to make yourself unhappy by worrying about it. (Often used to justify not telling someone about a problem or misdeed.)
--Ellen: What a beautiful diamond necklace! Thank you! But how on earth did you get the money to pay for it?
--Fred: What you don't know won't hurt you.
cf.Ignorance is bliss:-http://www.urbandictionary.com/define.php?term=ignorance%20is%20bliss:clap::inno:

 

[Hellegennes]

-Είναι προτιμότερο να μην ξέρεις
-Καλύτερα μη μάθεις
-Όσο πιο λίγα ξέρεις τόσο το καλύτερο
-Μακάριοι οι πτωχοί τω πνεύματι

 

[Zazula]

cf. Ignorance is bliss:-http://www.urbandictionary.com/define.php?term=ignorance is bliss:clap::inno:

http://lexilogia.gr/forum/showthrea...ποια-πράγματα-είναι-καλύτερο-να-μην-τα-ξέρεις