Related:

• The apophthegm "Know thyself" is his. -- Diogenes Laertius (c. 200 AD) -- Thales, xiii
• Know thyself. Nothing in excess. Never do ourselves what we blame in others.
  Love thy neighbor. -- Thales of Miletus (640?-c.546 BCE) attributed by Solon and others....
• The most difficult thing in life is to know yourself. -- Thale
• Know thyself. If you need help, call the C.I.A.
• Man know thyself! All writing centers there. -- Young