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• Observation, not old age, brings wisdom.
• Wisdom is the gray hair unto men, and an unspotted life is old age.
  -- Old Testament -- Wisdom of Solomon iv, 8...
• Life is a succession of lessons, which must be lived to be understood. -- Ralph Waldo Emerso
• Life is a successon of lessons, which must be lived to be understood. Ralph Waldo Emerso
• Lovers of wisdom must be inquirers into very many things indeed. -- Heraclitu
• Cato requested old men not to add the disgrace of wickedness to old age, which was accompanied with many other evils.
  -- Plutarch (46-120 AD) -- Roman Apophthegms, Cato the Elde...
• The veracity which increases with old age is not far from folly. (Maxim 416)
• I attribute my old age to having lived a long time.
  Most people who do this are older than those who do not....
• But at least one must be lived ... and died.