“It is a good morning exercise for a research scientist to discard a pet hypothesis every day before breakfast. It keeps him young.”
Trans. M. Latzke (1966), p. 8
On Aggression (1963)
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Konrad Lorenz 17
Austrian zoologist, winner of the Nobel Prize in Physiology… 1903–1989Related quotes

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as quoted by Gordon Shrum. In an article by Robert Craig Brown, The life of Sir John Cunningham McLennan http://www.physics.utoronto.ca/overview/history/mclennan, Physics in Canada, March / April 2000.

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in the Bulletin of the Atomic Scientists (March 1953), Vol. 9, No. 2,ISSN 0096-3402, published by Educational Foundation for Nuclear Science, Inc., p. 38.