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.
Louis PasteurOh my goodness the mystery that has prompted my objective. My quality lies exclusively in my tirelessness.
Louis PasteurWhether our efforts are, or not, favored by life, let us be able to say, when we come near to the great goal, I have done what I could.
Louis Pasteur