Related:

• Courage is the complement of fear. A man who is fearless cannot be courageous.
  (He is also a fool.) -- Lazarus Long by Robert A Heinlei...
• Anyone who cannot cope with mathematics is not fully human.
  At best he is a tolerable subhuman who has learned to wear shoes, bathe and not make messes in the house....
• Anyone who cannot cope with mathematics is not fully human.
  At best he is a tolerable subhuman who has learned to wear shoes, bathe and not make messes in the house....
• Anyone who cannot cope with mathematics is not fully human.
  At best he is a tolerable subhuman who has learned to wear shoes, bathe and not make messes in the house....
• Anyone who cannot cope with mathematics is not fully human.
  At best he is a tolerable subhuman who has learned to wear shoes, bathe and not make messes in the house....
• A man who cannot reason is a fool, a man who will not reason is a bigot, and a man who dare not reason is a slave.
  -- William Drummond...
• He is no fool who gives what he cannot keep to gain what he cannot lose -- Jim Ellio