Louis Pasteur

Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world. Science is the highest personification of the nation because that nation will remain the first which carries the furthest the works of thought and intelligence.
Louis Pasteur - 1822-1895
Where observation is concerned, chance favors only the prepared mind.

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

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

Chance favors the prepared mind.

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

Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world.
Louis Pasteur - lecture 1854
In the field of observation, chance favors only the prepared mind.

- Louis Pasteur