Alan Turing — "I am not afraid of computers. I am afraid of the people who program them."

"I propose to consider the question, 'Can machines think?' This should begin with definitions of the meaning of the terms 'machine' and 'think.'"

"The idea of a 'thinking machine' has been considered by many, but the time for such a possibility is still far off."

"The true sign of intelligence is not knowledge but imagination."

"Hyperboloids of wondrous light. Rolling for age through Space and Time Harbour there Waves which somehow Might Play out God's holy pantomime."

"I believe that at the end of the century the use of words and general educated opinion will have altered so much that one will be able to speak of machines thinking without expecting to be contradicte…"