In his spare time, Copernicus studied the works of ancient astronomers, becoming so immersed in them that when he found the Latin works incomplete, he learned Greek so that he could study the original texts.
ويخبر المؤرخ ستانسلاف بجوستكِڤيتش ان تعاليم پومپوناتسي حررت « عالِم الفلك الشاب من مفاهيم العصور الوسطى » .‏