I propose to provide proof... that just as always an alcoholic ferment, the yeast of beer, is found where sugar is converted into alcohol and carbonic acid, so always a special ferment, a lactic yeast, is found where sugar is transformed into lactic acid. And, furthermore, when any plastic nitrogenated substance is able to transform sugar into that acid, the reason is that it is a suitable nutrient for the growth of the [lactic] ferment.

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.

There are no such things as applied sciences, only applications of science.

Luck favors the mind that is prepared.

One must not assume that an understanding of science is present in those who borrow the language

The more I know, the more nearly is my faith that of the Breton peasant. Could I but know all I would have the faith of a Breton peasant woman.

Oh my goodness the mystery that has prompted my objective. My quality lies exclusively in my tirelessness.