Quote by Louis Pasteur (1822-1895)

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

• There are no such things as applied sciences, only applications of science.

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

• Chance favors the prepared mind.

• Let me tell you the secret that has led me to my goal. My strength lies solely in my tenacity.

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