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.

Chance favors the prepared mind.

Science and Peace will triumph over Ignorance and War...

Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world.

I have the faith of a Breton peasant and by the time I die I hope to have the faith of a Breton peasant's wife.

The universe is asymmetric.

Nothing is lost and nothing is created in the operations of art as those of nature.