Louis Pasteur ( 1822 - 1895), French chemist and microbiologist who was one of the most important founders of medical microbiology. Pasteur’s contributions to science, technology, and medicine are nearly without precedent. He pioneered the study of molecular asymmetry; discovered that microorganisms cause fermentation and disease; originated the process of pasteurization; saved the beer, wine, and silk industries in France; and developed vaccines against anthrax.
Louis Pasteur spent years working on a vaccine. Just as he was about to experiment on himself, a nine-year-old boy, Joseph Meister, was bitten by a rabid dog. The boy's mother begged Pasteur to experiment on her son. Pasteur injected the boy for 10 days -- and the boy lived. Decades later, of all things Pasteur could have etched on his tombstone, he asked for 3 words, "Joseph Meister lived." Pasteur believed our greatest legacy to be those who live eternally because of our effort