Ilya Ilyich Mechnikov (Russian: Илья́ Ильи́ч Ме́чников, also written as Élie Metchnikoff; 15 May [O.S. 3 May] 1845 – 15 July 1916) was a Russian zoologist best known for his pioneering research in immunology.
It is possible to state as a general principle that the mesodermic phagocytes, which originally (as in the sponges of our days) acted as digestive cells, retained their role to absorb the dead or weakened parts of the organism as much as different foreign intruders.
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.
There is only one constant element in immunity, whether innate or acquired, and that is phagocytosis. The extension and importance of this factor can no longer be denied.
Needless fear and panic over disease and misfortune that seldom materialize are simply bad habits. By proper ventilation and illumination of the mind it is possible to cultivate tolerance, poise and real courage.
Susane Colasanti
Phil Spector
Ernst Udet
Randy Savage
James P. Cannon
Iolo Morganwg
Arthur Lydiard
Jean-Martin Charcot
Jessica Stroup
Nancy Spero
Francesco Cossiga
Jim Sensenbrenner