In the fields of observation chance favors only those minds which are prepared.

Life comes only from life.

I give them experiments and they respond with speeches.

Herrmann Pidoux and Armand Trousseau stated 'Disease exists within us, because of us, and through us', Pasteur did not entirely disagree, 'This is true for certain diseases', he wrote cautiously, only to add immediately: 'I do not think that it is true for all of them'.

The more I study nature, the more I stand amazed at the work of the Creator. Science brings men nearer to God.

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.

When one works and imagines and dreams of nothing else than the search for answers that God has posed, it is difficult to be so still.