Riddle.

Seven

Compass and unmarked straightedge refuse it. The twelve-month sky refuses it. Seven will not sit in three hundred and sixty. The four corners of the earth already do.

How does one draw a seven-pointed star with will? The house will not grade you. Sight can count seven lamps. It cannot construct the angle.

Classical tools only. 360 ÷ 7 is not constructible. Will is not a tool in the kit.