The greatest disorder of the mind is to let will direct it.
If it is a terrifying thought that life is at the mercy of the multiplication of these minute bodies [microbes], it is a consoling hope that Science will not always remain powerless before such enemies.
Intuition is given only to him who has undergone long preparation to receive it.
... by chance you will say, but chance only favors the mind which is prepared.
The universe is asymmetric.
Messieurs, c'est les microbes qui auront le dernier mot." (Gentlemen, it is the microbes who will have the last word.)