To know how to wonder and question is the first step of the mind toward discovery.

It is surmounting difficulties that makes heroes.

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

After death, life reappears in a different form and with different laws. It is inscribed in the laws of the permanence of life on the surface of the earth and everything that has been a plant and an animal will be destroyed and transformed into a gaseous, volatile and mineral substance.

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

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

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.