For it is the duty of an astronomer to compose the history of the celestial motions through careful and expert study. – 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
Not a few other very eminent and scholarly men made the same request, urging that I should no longer through fear refuse to give out my work for the common benefit of students of Mathematics. – Nicolaus Copernicus
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