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

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.

The role of the infinitely small in nature is infinitely great.

The Greeks understood the mysterious power of the below things. They are the ones who gave us one of the most beautiful words in our language, the word enthusiasm.

What did you do today to receive your instruction?

It would seem to me that I was committing a theft if I were to let one day go by without doing some work.

My strength lies solely in my tenacity.