Disease is not the prerogative of man and the domestic animals, so it was quite natural to see if the lower animals, with very simple organizations, showed pathological phenomena, and if so, infection, cure and immunity could be observed among them.

Science, it is said, no doubt has ameliorated the material conditions of human life, but is powerless to solve those moral and philosophical questions that interest cultured people so deeply.

Inflammation as understood in man and the higher animals is a phenomenon that almost always results from the intervention of some pathogenic microbe.

Elie Metchnikoff Quotes