Related:

• Our greatest responsibility is to be good ancestors. -- Dr. Jonas Salk
• Humor is our greatest natural resource. -- James Thurbe
• Substance is one of the greatest of our illusions. -- Eddingto
• O happiness! our being's end and aim! Good, pleasure, ease, content!
  whate'er thy name: That something still which prompts the eternal sigh, For which we bear to live, or dare to die....
• Happiness is the greatest good.
• All nature is but art, unknown to thee; All chance, direction, which thou canst not see
  All discord, harmony not understood; All partial evil, universal good...
• The greatest pleasure I know is to do a good action by stealth, and have it found out by accident.
  -- Charles Lamb...
• The greatest pleasure--doing what they said couldn't be done.
• And would'st thou evil for his good repay?
  -- Alexander Pope (1688-1744) -- The Odyssey of Homer, Book xvi, Line 448...