知しらぬが仏ほとけ

expression

ignorance is bliss

Proverb meaning that not knowing something can keep you peaceful, like a Buddha. Often used when someone is happier unaware of an unpleasant truth.

• 真しん実じつを知しらないほうが幸しあわせなこともある。まさに知しらぬが仏ほとけだ。

  Sometimes it's happier not to know the truth. That's exactly 'ignorance is bliss'.