What shakespearean play has the qoutation the fault being not in the stars?

The quotation "The fault, dear Brutus, is not in our stars, but in ourselves" is from William Shakespeare's play "Julius Caesar." It is spoken by the character Cassius in Act 1, Scene 2, as he argues that individuals are responsible for their own fate rather than attributing their circumstances to fate or destiny. This line emphasizes themes of agency and personal responsibility within the play.