أن تأمر أساتذة الفلك بتفنيد ما شاهدوه بأعينهم، فذلك أن تأمرهم ألّا يروا ما يرونه، وألّا يفهموا ما يفهمونه.

“To command their professors of astronomy to refute their own observations is to command them not to see what they do see and not to understand what they do understand.”Galileo Galilei