ignorance is bliss
Definition:  what you do not know will not bother you
Usage:  I did not know that my neighbor is selling drugs, ignorance is bliss

SEPEDI
Translation:  go se tsebe ke boiketlo/go iketla
Proverb: lesogana leo le sa etego le nyala kgaetšedi, le re makgarebe a fedile

XITSONGA
Translation:  ku pfumala vutivi i nkateko
Proverb: loko u nga fambi u ta teka makwenu

TSHIVENḒA
Translation:  u sa ḓivha ndi dzanga
Proverb: tshi sa ḓivhiwi a tshi huvhadzi