Related:

• True knowledge exists in knowing that you know nothing. -- Socrate
• The only true knowledge, consists in knowing, that we know nothing, -- Socrate
• To know how to refuse is as important as to know how to consent. -- Baltasar Gracia
• The truest wild beasts live in the most populous places.
  -- Baltasar Gracian, "The Art of Worldly Wisdom" 1647...
• The value of knowledge lies not in its accumulation, but in its utilization.
• There is no shame in not knowing; the shame lies in not finding out. -- Russian proverb
• Know how to ask. There is nothing more difficult for some people.
  Nor for others, easier. Baltasar Gracia...
• Knowing when to optimize is as important as knowing how. -- Tom Neff
• All true knowledge contradicts common sense.