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date: 19 May 2022

Louis Pasteur 1822–95
French chemist and bacteriologist 

  1. Where observation is concerned, chance favours only the prepared mind.
    address given on the inauguration of the Faculty of Science, University of Lille, 7 December 1854
  2. There are no such things as applied sciences, only applications of science.
    address, 11 September 1872
  3. Wine may well be considered the most healthful and most hygienic of beverages.
    Études sur le vin (1873) pt. 1, ch. 2
  4. Science knows no country, because knowledge belongs to humanity.
    toast at banquet of the International Congress of Sericulture, Milan, 1876, in Maurice B. Strauss Familiar Medical Quotations (1968)
  5. Le germe n'est rien, c'est le terrain qui est tout.
    The microbe is nothing, the terrain is everything.
    on his deathbed, to Professor Rénon; Hans Seyle The Stress of Life (1956)