낮말은 새가 듣고 밤말은 쥐가 듣는다

Walls have ears.

너 자신을 알라

Know thyself.(yourself)

내 이웃을 내 몸같이 사랑하라

You shall love your neighbor as yourself

누워서 침뱉기

Throw not stones at your window.

누워서 떡먹기

It's a piece of cake.