Know thyself is perhaps God's instruction to "Cease to concern yourself! to "Become objective'.
Know thyself is a maxim as pernicious as it ugly. Whoever observes himself arrests his own development. A caterpillar who wanted to know itself well would never become a butterfly.

Know thyself is written over the portal of the antique world. Over the portal of the new world should be written "be thyself!"

Know thyself is the idea that it is of great advantage that man should know his station, and not imagine that the whole universe exists only for him.
Know thyself is a phase whereby the 'self' is meant to refer to a conscience far below the ego with its anxieties of self-interest, far below all social and cultural conditioning, in short the spiritual self.