RENE DESCARTES..1663

      4 basic rules of scientific inquiry

      • 1-Doubt eveything

      • 2-If they tell you something is certain, think of it as probable

      • 3-If they tell you it's probable, call it possible

      • 4-And if the word is that it's possible, forget it

      PIERRE ABELARD..12th century

      Dialectic use of logic. 4 basic rules of argument.

      • 1-Use systematic doubt and question everything

      • 2-Learn the difference between statements of rational proofs and those of just persuasion

      • 3-Be precise in the use of words and expect precision from others

      • 4-Watch for mistakes

      Enchanted Backgrounds