Elie Metchnikoff Quotes
In the same way that plants will not grow on soil that lacks some substance indispensable to their growth, so microbes, these microscopic plants which cause infectious disease, are unable to grow in an organism which does not give them all the substances they need.
Citations
Metchnikoff, Élie. Immunity in Infective Diseases. Translated by Francis G. Binnie, Cambridge University Press, 1905, p. 15.
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Ilya Ilyich Mechnikov was a Russian Imperial zoologist of Moldavian and Ukrainian Jewish origin best known for his pioneering research in immunology.