For it is the duty of an astronomer to compose the history of the celestial motions through careful and expert study. – Nicolaus Copernicus
I am aware that a philosophers ideas are not subject to the judgment of ordinary persons, because it is his endeavour to seek the truth in all things, to the extent permitted to human reason by God. – Nicolaus Copernicus
So far as hypotheses are concerned, let no one expect anything certain from astronomy, which cannot furnish it, lest he accept as the truth ideas conceived for another purpose, and depart from this study a greater fool than when he entered it. – Nicolaus Copernicus
Although all the good arts serve to draw mans mind away from vices and lead it toward better things, this function can be more fully performed by this art, which also provides extraordinary intellectual pleasure. – Nicolaus Copernicus