Nothing occurs contrary to nature except the impossible, and that never occurs.

I do not feel obliged to believe that the same God who has endowed us with senses, reason, and intellect has intended us to forego their use.

One can understand nature only when one has learned the language and the signs in which it speaks to us; but this language is mathematics and these signs are methematical figures.

Scripture is a book about going to Heaven. It's not a book about how the heavens go.

The Milky Way is nothing else but a mass of innumerable stars planted together in clusters.

They seemed to forget that the increase of known truths stimulates the investigation, establishment and growth of the arts; not their dimination or destruction.

Knowing thyself, that is the greatest wisdom.