Allen Newell

1927–1992 · American cognitive scientist

Topics: artificial intelligence

• The Physical Symbol System Hypothesis. A physical symbol system has the necessary and sufficient means for general intelligent action.

  — Allen Newell

• A unified theory of cognition is a single set of mechanisms that cover all of cognition—problem solving, decision making, routine action, memory, learning, skill, perception, and motor behavior.

  — Allen Newell