My present and most fixed opinion regarding the nature of alcoholic fermentation is this: The chemical act of fermentation is essentially a phenomenon correlative with a vital act, beginning and ending with the latter. I believe that there is never any alcoholic fermentation without their being simultaneously the organization, development, multiplication of the globules, or the pursued, continued life of globules which are already formed.

You have not succeeded in your experiments, that is all there is to it.

The greatest derangement of the mind is to believe in something because one wishes it to be so.

One does not ask of one who suffers: What is your country and what is your religion? One merely says: You suffer, that is enough for me.

Time is the best appraiser of scientific work, and I am aware that an industrial discovery rarely produces all its fruit in the hands of its first inventor.

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

Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world. Science is the highest personification of the nation because that nation will remain the first which carries the furthest the works of thought and intelligence.