Work usually follows will.

My strength lies solely in my tenacity.

The artificial products do not have any molecular dissymmetry; and I could not indicate the existence of a more profound separation between the products born under the influence of life and all the others.

Chance favors the prepared mind.

How do you know that the incessant progress of science will not compel scientists to consider that life has existed during eternity, and not matter?

Did you ever observe to whom the accidents happen? Chance favors only the prepared mind.

The nights seem to me too long... I am often scolded by Madame Pasteur, but I tell her I shall lead her to fame.