知病

原文

知不知上；不知知病。夫唯病病，是以不病。圣人不病，以其病病，是以不病。

王弼注

知不知上，不知知病。不知知之不足任则病也。夫唯病病，是以不病。圣人不病，以其病病，是以不病。

英文 · James Legge

(The disease of knowing) To know and yet (think) we do not know is the highest (attainment); not to know (and yet think) we do know is a disease. It is simply by being pained at (the thought of) having this disease that we are preserved from it. The sage has not the disease. He knows the pain that would be inseparable from it, and therefore he does not have it.