MACBETH: I will not yield, / To kiss the ground before young Malcolm’s feet, / And to be baited with the rabble’s curse. … Yet I will try the last. Before my body / I throw my warlike shield. Lay on, Macduff, / And damned be him that first cries ‘Hold! Enough!’
Macbeth’s defiant last words before his fatal duel — “lay on” meant ‘strike hard.’ He is challenging his enemy to fight, not asking to be led anywhere.
✓Public domain
The genuine line is from Macbeth, first printed in the 1623 First Folio — long in the public domain. The popular wording “Lead on, Macduff” is a later folk corruption found in no Shakespearean text, so it has no separate authored source of its own.
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