In the fields of observation chance favours only the prepared mind.
Dans les champs de l'observation le hasard ne favorise que les esprits préparés.
Original text (French)
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Notes from Wikiquote
Lecture, University of Lille (7 December 1854) | Fortune favors the prepared mind. | In the field of observation, chance favors the prepared mind. | Where observation is concerned, chance favors only the prepared mind.
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