Question

he would not take the crown

Answer 1

Julius Caesar refused the crown because he did not want the people to think he was a king. During the Feast ... He had to make sure Brutus really was questioning Caesar's ambition

Answer 2

Julius Caesar refused the crown because he did not want the people to think he was a king.

During the Feast of Lupercal, Brutus and Cassius are told by Casca that the cheering they overheard was caused by Caesar pandering to the people. Casca sneeringly describes the scene, how Mark Antony, Caesar’s deputy, offered Caesar a crown, and Caesar refused it, and "the people fell a-shouting."

Brutus accuses Caesar of ambition, but according to Casca, he refused the crown that Mark Antony offered him a total of three times!