People meeting Pasteur always faced an awkward moment, as he refused to shake hands - which sounds cute and eccentric - except that three of his children died of typhoid.
Contemporaries remembered his bravery in collecting samples of saliva from rabid dogs for his ultimately successful work creating a vaccine against the disease.
Pasteur quotes: "I am often scolded by Mme. Pasteur, but I console her by telling her that I shall lead her to fame."
"My strength lies solely in my tenacity."