"what one doesn't know won't hurt one" in Chinese (Traditional)
Definition
這個表達表示，如果一個人不知道某件事，那件事就不會讓他難過或受傷。常用於為不告訴某人不愉快的消息找理由。
Usage Notes (Chinese (Traditional))
這是非正式的諺語，用來在隱瞞消息或不想讓人擔心時。也有為保密辯護的含義。常見於『眼不見心不煩』這種說法，表示有時無知是好事。
Examples
Some people say what one doesn't know won't hurt one when they hide secrets.
有人藏祕密時會說「**眼不見心不煩**」。
He didn't tell his friend about the mistake because he thought what one doesn't know won't hurt one.
他沒告訴朋友錯誤，覺得「**不知道就不會受傷**」。
Parents sometimes believe what one doesn't know won't hurt one and don't share bad news with children.
父母有時認為「**眼不見心不煩**」，不會告訴孩子壞消息。
Honestly, what one doesn't know won't hurt one, so just keep it to yourself.
說真的，**眼不見心不煩**，你自己知道就好。
Should I tell her the truth? Maybe what one doesn't know won't hurt one in this case.
我該告訴她實情嗎？也許這次「**不知道就不會受傷**」。
I always say what one doesn't know won't hurt one when it comes to surprise parties.
說到驚喜派對，我總是說「**眼不見心不煩**」。