"The view that machines cannot give rise to surprises is due, I believe, to a fallacy to which philosophers and mathematicians are particularly subject."

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

"The original question, 'Can machines think?' I believe to be too meaningless to deserve discussion. Nevertheless I believe that at the end of the century the use of words and general educated opinion …"

"The problems of biology can be reduced to physics and chemistry."

"The works and customs of mankind do not seem to be very suitable material to which to apply scientific induction."