Nicolaus Copernicus said this quote

“ For it is the duty of an astronomer to compose the history of the celestial motions through careful and expert study. ”

Famous Quotes of Nicolaus Copernicus

See all

To know that we know what we know, and to know that we do not know what we do not know, that is true knowledge.

~ Nicolaus Copernicus

Mathemata mathematicis scribuntur.

~ Nicolaus Copernicus

So, influenced by these advisors and this hope, I have at length allowed my friends to publish the work, as they had long besought me to do.

~ Nicolaus Copernicus

Of all things visible, the highest is the heaven of the fixed stars.

~ Nicolaus Copernicus