Related:

• In his errors a man is true to type. Observe the errors and you will know the man.
  -- Confucius -- Analects, IV.7...
• From the errors of others a wise man corrects his own. -- Publius Syru
• The man of virtue make the difficult to be overcome his first business and success only a subsequent consideratio
  his may be called the perfect virtue. -- Cervante...
• The most difficult secret for a man to keep is his own opinion of himself. PAGNOL
• No man's knowledge here can go beyond his experience. -- John Locke
• A man of genius makes no mistakes. His errors are volitional and are the portals of discovery.
  -- James Joyce, "Ulysse...
• It is not good for a man to be without knowledge, and he who makes haste with his feet misses his way.
  -- Proverbs 19:2...
• When a man's knowledge is not in order, the more of it he has the greater will be his confusion.
  Herbert Spencer, (1820-1903)...