[about Pasteur]
Dr. Charbonnet: You remember a few years ago, he was the cause of a slight controversy on the subject of sour wine.
Napoleon III: Oh, yes, I recall.
Dr. Charbonnet: He claimed to have found little animals in it... infinitesimal beasts.
Napoleon III: But are there such creatures? Do they really exist?
Dr. Charbonnet: Your Majesty, microscopic organisms have long been observed. They spring into being of their own accord wherever there is putrid matter or fermentation. They are the result rather than the cause of disease. By heating wine to certain temperature, Monsieur Pasteur was able to destroy them. I presume he plans to cure blood poisoning in the same manner: namely, by boiling our blood.
Napoleon III: Heaven forbid.
Dr. Charbonnet: It's not unlikely, I assure you.
Napoleon III: But, I won't have it, Charbonnet. I won't tolerate such practices. We're not living in the Middle Ages. This is France... Paris... the nineteenth century.
Empress Eugenie: I think Monsieur Pasteur should be allowed to defend himself.
Dr. Charbonnet: But, your Majesty...
Empress Eugenie: I, too, have read the pamphlet, Doctor Charbonnet. It said nothing about boiling blood - merely to boil the instruments that you surgeons use.
Dr. Charbonnet: Your Majesty, if I did anything so absurd as to boil my instruments or scrub my hands, they'd think I was a witch doctor resorting to charms and laugh me out of the hospital.
Empress Eugenie: That would be a novelty, Monsieur. Most people who go to hospitals are CARRIED out... dead.
Napoleon III: Yes, Cahrbonnet. Why?

[addressing The Academy of Medicine - directing his remarks to the young men in the balcony]
Dr. Louis Pasteur: You young men - doctors and scientists of the future - do not let yourselves be tainted by apparent skepticism; nor discouraged by the sadness of certain hours that creep over nations. Do not become angry at your opponents, for no scientific theory has ever been accepted without opposition. Live in the serene peace of libraries and laboratories. Say to yourselves, first, "What have I done for my instruction?" And as you gradually advance, "What am I accomplishing?" Until the time comes when you may have the immense happiness of thinking that you have contributed in some way to the welfare and progress of mankind.

Dr. Louis Pasteur: [to his assistants] Remember our aim: Find the microbe - kill the microbe.

Dr. Louis Pasteur: Jean, how many dogs have we left?
Dr. Jean Martel: Ten.
Dr. Louis Pasteur: Are they well? Healthy?
Dr. Jean Martel: In perfect condition. They've never been exposed.
Dr. Louis Pasteur: Give them hydrophobia.
Dr. Jean Martel: [in disbelief] You mean...?
Dr. Louis Pasteur: Give them hydrophobia.