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.

Where observation is concerned, chance favors only the prepared mind.

Without theory, practice is but routine born of habit. Theory alone can bring forth and develop the spirit of inventions.

Wine is the most healthful and most hygienic of beverages.

Science belongs to no one country.

Science knows no country because it is the light that iluminates the world

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