As in water face answereth to face, so the heart of man to man.
– Proverbs 27:19
This saying is difficult to decipher. The first line speaks of a reflection, but the simile seems uncertain. Is the saying positive or negative? Some suggest some saying regarding friendship, but that introduces a second party that is not in the text. The most straightforward seems to be that a man may look into water to see a reflection of himself and may look into his heart/mind/thoughts/feelings to see his true nature.