Related:

• Many books require no thought from those who read them, for a very simple reason- they made no such demand upon those who wrote them.
  Those works, therefore, are the most valuable that set our thinking faculties in the fullest operation....
• A dictionary - Book with words for those who can't read...
• The world is a beautiful book, for those who can read it.
• Those who run are enemy. Those who don't are well trained enemy.
• The wretched souls of those who lived Without or praise or blame.
  -- Dante (1265-1321) -- Hell, Canto iii, Line 34...
• Hating anything in the way of ill-natured gossip ourselves, we are always grateful to those who do it for us and do it well.
• The illiterate of the 21st century will not be those who cannot read and write, but those who cannot learn, unlearn, and relearn.
  -- Alvin Toffle...
• Individuals domiciling in vitreous edifices would be well advised to refrain from catapulting petrogenetic projectiles.
  [ people who live in glass houses shouldn't throw stones. ]...
• People who live in glass houses shouldn't throw stones.