I never met a man so unknowledgeable, I could not learn something from him.

Eppur si muove

If you could see the earth illuminated when you were in a place as dark as night, it would look to you more splendid than the moon.

Mathematics is the key and door to the sciences.

Vast is the field of Science ... the more a man knows, the more he will find he has to know.

After all, the cultivated person's first duty is to be always prepared to rewrite the encyclopaedia.

Life seemed to be an educator's practical joke in which you spent the first half learning and the second half learning that everything you learned in the first…