Prince of Swords
The strong helmet protects the prince, while, with eyes closed and head bent forward, he is demolishing the hard wall. Some bricks are falling down. A part of the wall looks like a bookcase. This is all about ancient knowledge and opinions, the details of which are being asked about or, in the truest sense of the word, which are being blown into mid-air. However with his eyes closed the prince cannot take into consideration what he is throwing around.